NLE Perioperative & Pain Nursing — Postoperative Care and Surgical Wound ManagementStudy Notes

The Post-Anesthesia Care Unit (PACU) is where patients recover from anesthesia under continuous monitoring. Immediately after surgery, patients face significant risks from residual anesthesia, airway compromise, and cardiovascular instability. The nursing process begins with systematic assessment guided by Maslow's hierarchy of needs, prioritizing physiological safety needs over psychological comfort. The foundational priority framework in postoperative care is the ABCs—Airway, Breathing, Circulation. This hierarchy is not optional; it reflects the sequence of life-threatening risks that determine whether a patient survives the immediate recovery period. **AIRWAY AND BREATHING (Top Priority)** The sedated or semi-conscious patient is at immediate risk of airway obstruction. The tongue, muscles, and soft palate lose tone under general anesthesia and may fall back and block the airway. Your first action is to ensure patency. Positioning is critical: place the patient in a **side-lying position** or with the **head turned to the side** (not supine) until the gag reflex returns—typically 30 minutes to several hours, depending on the anesthetic agents used. This lateral position allows secretions and gastric contents to drain from the mouth rather than pool in the pharynx and be aspirated into the lungs. Continuously assess respiratory effort: look for adequate chest rise, listen for bilateral breath sounds, and monitor oxygen saturation (SpO2 target >94–95%). Many postoperative patients breathe shallowly due to pain, opioid effects, and surgical manipulation. Encourage **deep breathing and coughing** even in the PACU; this is your first line of defense against atelectasis. Administer supplemental oxygen as ordered and suction the airway gently if needed. The gag reflex must return before the patient is given oral fluids or food—this reflex protects against aspiration. **CIRCULATION (Second Priority)** Once breathing is secure, assess circulation. Monitor **vital signs frequently**—every 15 minutes initially, then every 30 minutes as the patient stabilizes. Assess for **hypovolemic shock** from blood loss: look for hypotension (systolic <90 mmHg or a drop >20 mmHg from baseline), tachycardia (HR >100 bpm at rest), cool clammy skin, restlessness, and altered mental status. Check the surgical dressing for excessive bleeding; a small amount of serosanguineous drainage is normal, but soaking through a dressing within minutes signals hemorrhage. Inspect drains (if present) for dark red or excessive output. Maintain at least two IV lines with large-bore catheters to allow rapid fluid or blood product administration if hemorrhage occurs. Hypothermia is common in the immediate postoperative period (body temperature may drop to 35–36°C) due to anesthesia-induced vasodilation and prolonged exposure in the operating room. Ensure adequate warming with blankets or forced-air warming devices; shivering increases oxygen demand and should be managed. However, fever in the first 24 hours is typically from anesthesia residue or atelectasis, not infection. **LEVEL OF CONSCIOUSNESS AND PROTECTIVE REFLEXES** Assess the patient's responsiveness using a standardized scale (e.g., Glasgow Coma Scale) and document the return of protective reflexes. The patient should progress from drowsy to alert. Confusion or persistent sedation may indicate inadequate reversal of anesthetic agents, hypoxemia, or hypercarbia and must be reported. **PAIN, NAUSEA, AND COMFORT** Once airway and circulation are stable, address pain and nausea. The postoperative patient in pain is at higher risk of shallow breathing, hypertension, tachycardia, and poor recovery. Assess pain using a 0–10 numeric rating scale and administer analgesics (opioids, NSAIDs, or local anesthetics) as ordered. Postoperative nausea and vomiting (PONV) are common due to anesthesia, opioids, and bowel manipulation; treat with antiemetics (ondansetron, metoclopramide) as prescribed. Keep the patient NPO until alert and the gag reflex is intact. **FLUID BALANCE AND URINE OUTPUT** Accurately measure and record all intake (IV fluids, oral intake when allowed) and output (urine, drain output, vomiting). Expect the first urine output within 6–8 hours post-op; void less than this is recorded as urinary retention. Monitor the color and clarity of urine (dark urine may indicate dehydration; hematuria is abnormal and reported). **SURGICAL SITE AND DRAINS** Inspect the dressing without removing it (unless ordered). Note the type of dressing, any drainage (color, amount, odor), and whether it is secure. A typical postoperative dressing may have a small amount of serosanguineous drainage in the first few hours. If drains are present (Jackson-Pratt, Hemovac, Penrose), document output. Some surgeons prefer the first dressing change to be done by them. **DISCHARGE/TRANSFER CRITERIA FROM THE PACU** Before the patient leaves the PACU, ensure that **discharge criteria are met**: - Stable vital signs (systolic BP >90 mmHg, HR 60–100 bpm, RR 12–20, temperature <38°C) - Patent airway and adequate oxygenation (SpO2 ≥94% on room air or as ordered) - Appropriate level of consciousness (alert or easily arousable; no signs of hypoxemia or anesthetic overdose) - Gag reflex intact (if applicable) - Controlled pain (pain rating ≤4 on a 0–10 scale or as facility protocol) - Controlled nausea and vomiting - No active bleeding from the surgical site or drains - Adequate urine output The **Aldrete Score** is a common PACU discharge tool that evaluates activity, respiration, circulation, consciousness, and oxygen saturation on a scale of 0–10; a score ≥9 typically allows discharge. Document this score on the postoperative record. **HAND-OFF COMMUNICATION** When the patient leaves the PACU, the PACU nurse must give a complete, organized hand-off report to the receiving unit nurse. Use the **SBAR format** (Situation, Background, Assessment, Recommendation) or your facility's protocol: - **Situation**: Type of surgery, date/time completed, anesthesia type - **Background**: Pre-existing conditions, allergies, medications, pre-operative labs - **Assessment**: Current vital signs, level of consciousness, pain level, drainage from incision/drains, IV access, fluid balance - **Recommendation**: Anticipated post-op course, any special orders or precautions This structured communication ensures continuity and reduces the risk of critical information being lost.

Fever in the postoperative period is common, and the **timing** of its onset helps identify the likely cause. This clinically useful mnemonic—the **'5 Ws'**—is a high-yield concept for the NLE and guides your nursing assessment and communication with the physician. **POSTOPERATIVE FEVER TIMELINE** **Within the First 24 Hours (Wind: Atelectasis)** Low-grade fever (37.5–38°C) in the immediate postoperative period is almost always due to **atelectasis**—collapse of alveoli caused by shallow breathing, retained secretions, and anesthesia effects. It is not an infection. The fever resolves as the patient breathes deeply, coughs, and mobilizes secretions. This is the **most common cause of early postoperative fever** and should not trigger empiric antibiotic therapy. **Days 2–3 Post-op (Water: Urinary Tract Infection)** Fever appearing on postoperative day 2–3, especially if the patient had a urinary catheter or has dysuria and cloudy urine, suggests a **urinary tract infection (UTI)** or **catheter-associated urinary tract infection (CAUTI)**. Monitor for urgency, dysuria, hematuria, or nitrites/leukocyte esterase on urinalysis. Ensure the patient is voiding adequately after catheter removal; inadequate fluid intake and prolonged catheterization increase risk. **Days 3–5 Post-op (Walking/Veins: Deep Vein Thrombosis)** Fever around postoperative days 3–5, particularly if accompanied by unilateral calf pain, swelling, warmth, or redness, raises concern for **deep vein thrombosis (DVT)** with possible **pulmonary embolism (PE)**. The inflammatory response to thrombosis triggers fever. This is a medical emergency; any suspicion of PE (dyspnea, chest pain, hypoxia, tachycardia) warrants immediate assessment and notification of the physician. **Days 4–6 Post-op (Wound: Surgical Site Infection)** Fever persisting or newly appearing around postoperative days 4–6, with redness, warmth, swelling, pain, purulent (pus-like) or foul-smelling drainage from the surgical site, indicates **surgical site infection (SSI)**. Culture any drainage, administer antibiotics as ordered, and ensure adequate wound care. Obesity, diabetes, immunosuppression, and contaminated surgery increase SSI risk. **Any Time (Wonder Drugs/What Did We Do: Drug Reactions or Other)** Fever at any postoperative time point may reflect allergic reactions to medications or antibiotics, IV line infection (phlebitis, septic thrombophlebitis), or aspiration pneumonia. Examine IV sites for redness, swelling, or warmth. Ask about new medications started post-op. **CLINICAL SIGNIFICANCE** A fever >38°C (100.4°F) after postoperative day 3 is concerning for infection rather than the benign atelectasis-related fever of the first 24 hours. The pattern and associated symptoms guide investigation and treatment. Low-grade fever in the immediate post-op period should prompt interventions to clear the airway and expand the lungs, not prophylactic antibiotics.

Pulmonary complications are the **most common postoperative complications**, and **atelectasis is the most common pulmonary complication**, especially in the first 24–48 hours after surgery. As a nurse, your preventive interventions—**deep breathing, incentive spirometry, coughing, early ambulation, frequent repositioning, and adequate hydration**—are the **highest-yield, most effective** measures for preventing these life-threatening complications. **PATHOPHYSIOLOGY OF ATELECTASIS** Atelectasis occurs when alveoli (the tiny air sacs in the lungs) collapse and are no longer ventilated. During general anesthesia, several mechanisms promote atelectasis: - **Reduced functional residual capacity (FRC)**: anesthesia causes loss of muscle tone and compression of airways - **Retained secretions**: anesthesia suppresses the cough reflex, and secretions pool in dependent areas - **Shallow breathing**: pain, opioid analgesics, and abdominal/chest surgery pain inhibit deep breathing - **Dependent atelectasis**: patients often remain in one position during and after surgery, causing areas of the lung to collapse Collapsed alveoli are not perfused with blood, creating ventilation-perfusion (V/Q) mismatch and hypoxemia. As collapsed tissue warms and is not ventilated, bacteria can proliferate, and pneumonia may develop if secretions are not cleared. **CLINICAL SIGNS OF ATELECTASIS** - **Low-grade fever** (37.5–38°C) in the first 24 hours - **Decreased breath sounds**, especially at the lung bases - **Dyspnea** (increased respiratory rate, use of accessory muscles) - **Decreased oxygen saturation** (SpO2 <94%) - **Dull percussion** over collapsed areas - **Restlessness or anxiety** (from hypoxemia) - **Chest X-ray findings**: areas of opacity or consolidation Onset is usually within the first 24–48 hours; if atelectasis progresses and secretions are not mobilized, **pneumonia** develops (fever >38.5°C, productive cough with purulent sputum, crackles or consolidation on exam, elevated WBC, infiltrate on CXR). **PREVENTION: THE CORE NURSING INTERVENTIONS** **1. Deep Breathing** Deep breathing expands collapsed alveoli by increasing intrapulmonary pressure. Teach the patient before surgery, if possible: take slow, deep breaths in through the nose, hold for a count of 2–3, and exhale slowly through the mouth. Have the patient take 5–10 deep breaths every hour, especially in the first 24 post-op hours. Use **incentive spirometry** to make this visible and motivating: the patient inhales slowly and deeply to move a piston or floating ball to a target volume on the device, usually 1000–4000 mL depending on predicted capacity. The spirometer provides objective feedback that encourages effort. **2. Coughing** Coughing mobilizes secretions and clears the airway. To protect an incision and reduce pain-related guarding, teach **splinting**: place a pillow or hands over the surgical incision, apply gentle pressure, and cough. This reduces tension on the incision and makes coughing less painful, so the patient is more willing to cough effectively. Have the patient cough after deep breathing, ideally every 2 hours initially. **3. Positioning and Frequent Repositioning** Positioning affects which areas of the lung are ventilated. Encourage frequent position changes—from semi-Fowler's to upright, or side-to-side—every 1–2 hours. The dependent areas of the lung (those "down") are at highest risk of atelectasis. Upright and semi-upright positions increase functional residual capacity and reduce atelectasis compared to supine. If the patient has abdominal or chest surgery, sitting or semi-Fowler's is ideal. Avoid prolonged supine positioning. **4. Early Ambulation** Early, frequent ambulation is one of the most powerful interventions. Walking increases chest wall movement, stimulates the cough reflex, improves circulation, and reduces overall postoperative complications. Encourage the patient to walk within hours of surgery (as soon as vital signs are stable and pain is controlled), starting with dangling the legs at the bedside, then standing at the bedside, then walking short distances. Increase distance and frequency each day. Walking is not only a pulmonary intervention—it prevents DVT, reduces ileus, and improves mood and recovery. **5. Adequate Hydration** Secretions become thick and tenacious (sticky) if the patient is dehydrated, making them harder to cough up. Maintain adequate IV fluids in the immediate post-op period and encourage oral intake (clear liquids, then full liquids) as soon as tolerated. A well-hydrated patient produces thinner secretions that are easier to mobilize. Typically, 2–3 L of fluid per day (IV + oral) is adequate unless contraindicated by the specific surgery (e.g., post-op fluid restrictions in cardiac surgery). **6. Pain Control** Pain is the enemy of deep breathing and coughing. A patient in severe pain will not breathe deeply or cough effectively. Administer analgesics on a schedule (not just as needed) in the first 24–48 hours to keep pain controlled at a baseline level, allowing the patient to comply with respiratory exercises. Regional anesthesia (epidural, spinal, peripheral nerve blocks) may be used to provide excellent pain control with minimal respiratory depression compared to opioids alone. **7. Suctioning** If the patient cannot clear secretions effectively (e.g., if intubated post-op or unable to cough), gentle suctioning removes secretions from the airway. Use aseptic technique, limit suctioning to <15 seconds, and apply suction only during withdrawal of the catheter to avoid traumatizing the airway. **ASSESSMENT AND DOCUMENTATION** Daily assess and document: - Breath sounds bilaterally, front and back - Respiratory rate and effort - Oxygen saturation - Color and amount of any sputum - Pain level and pain management effectiveness - Ability to cough and splint - Incentive spirometry volumes (if used) - Ambulation distance and tolerance **PNEUMONIA MANAGEMENT** If pneumonia develops (fever, productive cough, crackles, infiltrate on CXR), the patient requires: - Chest X-ray and sputum culture - Broad-spectrum IV antibiotics (pending culture results; commonly cephalosporin, fluoroquinolone, or combination therapy) - Continued respiratory support measures - Possible hospitalization or ICU monitoring if severe - Monitoring for sepsis (fever, tachycardia, tachypnea, altered mental status, elevated lactate) In the Philippine healthcare context, where resources may be limited in some facilities, prevention is critical—treating pneumonia with ICU-level care is far more costly and resource-intensive than preventing it with basic nursing measures.

Deep vein thrombosis (DVT) and pulmonary embolism (PE) represent life-threatening thromboembolic complications that can develop in the postoperative period. While both are serious, **PE is a medical emergency with high mortality if not recognized and treated promptly**. Understanding the risk factors, prevention strategies, and clinical presentation is essential for NLE success and patient safety. **PATHOPHYSIOLOGY: VIRCHOW'S TRIAD** Venous thromboembolism (VTE) develops when three conditions occur together—**Virchow's Triad**: 1. **Venous stasis** (sluggish blood flow): immobility after surgery reduces muscle contractions that normally help pump blood from the legs 2. **Endothelial injury** (damage to vein lining): surgical trauma, especially to lower-extremity vessels or pelvic structures, activates the coagulation cascade 3. **Hypercoagulability** (increased clotting tendency): surgery triggers release of tissue factor and platelet activation; postoperative patients are in a prothrombotic state The **postoperative period of highest risk** is the first 7–14 days after surgery, with peak incidence around days 3–5. Orthopedic surgery (hip fracture, knee replacement), abdominal-pelvic surgery, trauma, and prolonged immobility carry the highest risk. **RISK FACTORS FOR POSTOPERATIVE DVT/PE** - **Surgery-related**: major surgery, orthopedic surgery, pelvic/abdominal surgery, prolonged operative time (>90 minutes) - **Patient factors**: age >40, obesity, cancer, previous VTE, inherited thrombophilia, oral contraceptives or hormone replacement, immobility before surgery - **Postoperative factors**: prolonged bed rest, dehydration, infection **CLINICAL PRESENTATION OF DVT** Deep vein thrombosis most commonly affects the **deep veins of the legs** (popliteal, femoral) and presents with: - **Unilateral calf pain** (often sudden onset) - **Swelling and edema** of the affected leg (calf or entire leg) - **Warmth** over the affected area - **Erythema (redness)** of the skin - **Homan's sign** (calf pain with dorsiflexion of the foot)—note: this sign is not diagnostic and is rarely used now - **Palpable cord** in the calf (the thrombosed vein) - **Low-grade fever** (days 3–5 post-op) **CRITICAL**: Many DVTs are asymptomatic (up to 50%), especially in postoperative patients with multiple risk factors. Do not rely solely on clinical signs. **CLINICAL PRESENTATION OF PULMONARY EMBOLISM (MEDICAL EMERGENCY)** When a DVT breaks loose (embolizes), it travels to the lungs and blocks a pulmonary artery. Presentation ranges from subtle to dramatic: - **Sudden dyspnea** (most common) - **Pleuritic chest pain** (worse with breathing) - **Tachycardia** (HR >100, often >120) - **Tachypnea** (RR >20) - **Hypoxemia** (SpO2 <94% or sudden drop) - **Syncope** (fainting; indicates massive PE affecting cardiac output) - **Cyanosis** (bluish discoloration; sign of severe hypoxemia) - **Anxiety and sense of impending doom** - **Hemoptysis** (coughing up blood; indicates infarction) A massive PE (pulmonary artery occlusion >50% of pulmonary circulation) causes acute right heart failure, cardiogenic shock, and cardiovascular collapse. **Any suspicion of PE is a medical emergency**—notify the physician immediately, keep the patient calm, ensure IV access, apply oxygen, prepare for stat imaging (CTPA, VQ scan) and possible thrombolysis or embolectomy. **PREVENTION: THE GOLD STANDARD IN POSTOPERATIVE CARE** **1. Early Ambulation** This is the most effective prevention. Walking promotes muscle contractions in the legs that pump blood upward against gravity, reducing stasis. Begin walking within hours of surgery—help the patient dangle at the bedside, then stand, then walk short distances, progressively increasing distance and frequency daily. Even patients with epidural catheters or drains can walk with assistance. **2. Leg Exercises and Ankle Pumps** If the patient is bed-bound, teach **ankle pumps** (moving the foot up and down at the ankle) and **leg exercises** (marching in bed, hip and knee flexion/extension) every 2 hours while awake. These muscle contractions simulate the calf pump and reduce venous stasis. Encourage the patient to avoid prolonged static positioning and to move frequently throughout the day and night. **3. Sequential Compression Devices (SCDs)** SCDs are inflatable sleeves that wrap around the legs and inflate in a wave pattern from ankle to hip, mimicking the leg pump and emptying blood from the veins. They are especially useful for patients at high risk or those unable to ambulate. Apply SCDs for at least the first 24–48 hours post-op, and longer if the patient remains immobile. Ensure proper fit (snug but not restrictive) and check that they are cycling correctly. The patient can walk while wearing SCDs. **4. Pharmacologic Thromboprophylaxis** Physicians prescribe anticoagulants for high-risk patients: - **Low-molecular-weight heparin (LMWH)**: enoxaparin (Lovenox) 30–40 mg subcutaneously daily or 30 mg twice daily, depending on the procedure and bleeding risk. Administer at the same time each day, typically in the morning or evening. - **Unfractionated heparin (UFH)**: 5000 units subcutaneously 2–3 times daily; used in patients with severe renal impairment or those at high bleeding risk. - **Fondaparinux** (Arixtra): a factor Xa inhibitor; 2.5 mg subcutaneously daily. - **Oral anticoagulants**: warfarin or DOAC (apixaban, rivaroxaban) for extended thromboprophylaxis post-discharge in high-risk patients. The nurse ensures timely administration, proper injection technique (subcutaneous into the abdomen, not into bruised areas), and monitoring for signs of bleeding or heparin-induced thrombocytopenia (HIT). **5. Adequate Hydration** Dehydration increases blood viscosity and promotes clotting. Maintain adequate IV fluids post-op and encourage oral intake (water, juice, broth) as soon as tolerated. A well-hydrated patient has lower VTE risk. **6. Elevation and Compression Stockings** Elevate the legs above the level of the heart to promote venous return (unless contraindicated). Graduated compression stockings (TED hose) provide external compression to promote venous flow; apply before the patient gets out of bed and remove daily for skin inspection. **ASSESSMENT AND MONITORING** - Examine legs **daily** for asymmetry, swelling, warmth, redness, or pain - Measure and record calf circumference bilaterally (a difference of >3 cm suggests DVT) - Compare one leg to the other, not one day to the next - Ask about leg pain, calf cramps, or chest pain/dyspnea - Monitor vital signs for tachycardia or tachypnea - Ensure SCDs are functioning and in place - Confirm that the patient is receiving prescribed anticoagulants on time - Encourage early, frequent ambulation **DIAGNOSIS** If DVT is suspected, the patient undergoes **venous ultrasound (duplex ultrasound)** of the leg, which can visualize thrombus. If PE is suspected, the patient may have a **CT pulmonary angiography (CTPA)** or ventilation-perfusion (VQ) scan and labs including D-dimer, troponin, and BNP. An elevated D-dimer combined with clinical suspicion warrants imaging. **TREATMENT** - **DVT**: anticoagulation with IV unfractionated heparin (bolus followed by continuous infusion) or LMWH, then transition to oral anticoagulant (warfarin or DOAC) for 3–6 months or longer depending on risk. Monitor activated partial thromboplastin time (aPTT) if on UFH; aim for 1.5–2.5 times control. Monitor INR if on warfarin; aim for 2–3. - **PE**: similar anticoagulation; may require thrombolysis or embolectomy if massive or hemodynamically unstable. **CRITICAL NURSING ACTIONS** - **Do NOT massage a suspected DVT**: this can dislodge the thrombus and cause embolization to the lungs (PE). - **Do NOT apply heat** to a suspected DVT for the same reason. - Keep the affected limb elevated and at rest. - Notify the physician immediately of any signs of DVT or PE. **POSTOPERATIVE DVT/PE PREVENTION IN THE PHILIPPINE CONTEXT** In resource-limited settings, pharmacologic prophylaxis may be reserved for highest-risk patients, while early ambulation and mechanical prophylaxis (SCDs, leg exercises) are universally applied. The nurse's role in promoting early mobilization is therefore critical—it is free, safe, and highly effective.

Paralytic ileus is a temporary cessation of intestinal peristalsis (muscle contractions) that is **common after abdominal and pelvic surgery** and significantly impacts the patient's ability to eat, drink, and recover. Understanding the pathophysiology, recognition, and management of ileus is critical for postoperative nursing. **PATHOPHYSIOLOGY OF PARALYTIC ILEUS** Several factors contribute to ileus after surgery: - **Anesthesia**: general anesthesia suppresses peristalsis and may last 24–48 hours or longer - **Surgical manipulation**: handling and retraction of bowel loops during surgery disrupts nerve supply (enteric nervous system) and causes local inflammation - **Opioid analgesics**: morphine and other opioids bind to mu receptors in the GI tract and reduce peristalsis; they are a major risk factor for prolonged ileus - **Abdominal distention**: fluid and gas accumulating in the bowel further suppress motility - **Electrolyte abnormalities**: hypokalemia (low potassium) reduces smooth muscle contractility - **Inflammation and infection**: peritonitis or sepsis suppress GI function - **Type of surgery**: ileus is most pronounced after GI surgery, followed by genitourinary and gynecologic procedures; less common after peripheral vascular or orthopedic surgery The **colon is typically affected first and most severely**; the small bowel may recover within 24 hours, but colonic function may lag 3–5 days behind. **CLINICAL SIGNS OF ILEUS** - **Absent or diminished bowel sounds** (a key finding; distinguished from normal active bowel sounds, which are gurgling, clicking, or high-pitched 5–35 times per minute) - **Abdominal distention** (enlarged, tense, or tympanic to percussion from gas) - **Abdominal pain and tenderness** - **No passage of flatus (gas)** or stool - **Nausea and vomiting** (may be copious if there is significant gastric distention) - **No appetite** These signs typically appear within the first 24 hours after surgery and gradually resolve over 3–5 days as peristalsis returns. **ASSESSMENT** **Listen to bowel sounds** with a stethoscope in all four abdominal quadrants: - **Normal**: 5–35 sounds per minute (gurgling, clicking, tinkling sounds); present throughout the abdomen - **Absent**: no sounds heard after listening for at least 1–2 minutes in each quadrant - **Hyperactive**: >35 sounds per minute (early in ileus or as bowel function returns) - **High-pitched, tinkling**: suggests bowel obstruction or early bowel activity Absent bowel sounds in the first 24 hours post-op is expected from anesthesia and not, by itself, a sign of pathology. However, bowel sounds should gradually return over the first 24–48 hours; persistent absence beyond this, combined with other signs (distention, vomiting, no flatus), indicates ileus. **MANAGEMENT: PROMOTING RETURN OF BOWEL FUNCTION** **1. NPO (Nothing by Mouth) Status Initially** Keep the patient NPO until bowel sounds are present and the patient passes flatus (or has a bowel movement). Oral intake when the bowel is not functioning causes gas and fluid accumulation and worsens distention and nausea. The typical post-op diet progression is: - **NPO** initially (first 24 hours or until bowel sounds return) - **Clear liquids** (water, broth, juice, gelatin, popsicles)—if tolerated without nausea - **Full liquids** (add milk, cream soup, pudding, yogurt) - **Soft diet** (add bread, crackers, scrambled eggs, soft fruits) - **Regular diet** (as tolerated) Advance the diet slowly; nausea, vomiting, or abdominal distention signals the need to hold at the current level or return to NPO. **2. Nasogastric (NG) Decompression** If the patient has severe abdominal distention, vomiting, or is at high risk of aspiration (e.g., emergency abdominal surgery), the surgeon may order an **NG tube** to decompress the stomach. The tube is placed through the nose into the stomach and connected to suction (typically low intermittent or low continuous suction). The NG tube: - Removes gas and fluid from the stomach, reducing distention and allowing the bowel to gradually relax - Reduces the risk of aspiration of vomitus - Prevents further fluid accumulation and distention-related discomfort **Nursing care of the NG tube**: - Verify tube placement (aspirate pH <5, or X-ray if ordered) before any use - Measure and record output every 2–4 hours; note color (clear, green, coffee-ground) and consistency - Maintain appropriate suction settings as ordered - Check for proper position and tape security every 4 hours; reposition the patient and keep the tubing off tension to prevent dislodgement - Ensure the vent port is patent (if using intermittent suction) to allow air to enter and prevent trauma to the gastric mucosa - Perform oral hygiene with ice chips or a dry toothbrush to reduce discomfort from the tubing - Keep the patient NPO as ordered - Once bowel function returns (bowel sounds present, minimal NG output), the tube is clamped and, if tolerated without nausea/vomiting, is removed **3. Early Ambulation** **Early ambulation is the most effective intervention for promoting the return of bowel function**. Walking stimulates the entire GI system through vagal stimulation and physical movement. Begin ambulation as soon as vital signs are stable and pain is controlled (usually 6–24 hours post-op). Even patients on bed rest should perform leg exercises and change position frequently. **4. Fluid and Electrolyte Management** - Maintain adequate **IV hydration** in the immediate post-op period (2–3 L of balanced crystalloid per day). - Monitor and **replace potassium** if serum K+ is <3.5 mEq/L; hypokalemia impairs smooth muscle contraction and prolongs ileus. - Once oral intake is tolerated, encourage **adequate fluid intake** to prevent dehydration and soften stool. **5. Pain Control** Uncontrolled pain, especially abdominal pain, can perpetuate ileus. However, opioid analgesics worsen ileus. The ideal approach is: - Use multimodal analgesia: NSAIDs, acetaminophen, regional techniques (epidural, nerve blocks) when possible to minimize opioid use - If opioids are necessary, use the lowest effective dose and shortest duration - Consider alternatives like epidural analgesia (opioids in epidural space are more effective for pain with lower systemic effects) or peripheral nerve blocks - Adequate analgesia allows the patient to ambulate and participate in bowel function interventions **6. Avoid or Minimize Opioid Use** If possible, avoid opioid analgesics or use them sparingly. If the patient must take opioids (e.g., for severe pain), concurrent use of a **stool softener** (docusate sodium 100–200 mg daily) or **osmotic laxative** (polyethylene glycol, lactulose) can mitigate opioid-induced constipation. Avoid anticholinergic medications (atropine, scopolamine), which suppress GI motility. **7. Nutritional Support** Once oral intake is tolerated, nutrition supports recovery and GI function. Once on a regular diet, encourage: - **Protein**: supports wound healing and muscle function - **Fiber**: promotes motility (once ileus is resolved; not during acute phase) - **Adequate calories**: supports energy and immune function - **Fluids**: prevents dehydration and keeps stool soft **8. Pharmacologic Interventions (if ordered)** - **Metoclopramide** (Reglan): 10 mg IV or oral three times daily; enhances gastric contractions and accelerates gastric emptying. Less effective for colonic ileus. - **Domperidone**: similar to metoclopramide; used in some countries (less common in the US). - **Prucalopride**: a 5-HT4 agonist; enhances gastric and colonic motility; used in Europe more than the US. - **Gum chewing**: surprisingly, chewing sugar-free gum stimulates saliva production and activates the vagus nerve, promoting GI motility. Some studies show it shortens ileus duration. Note: These medications are adjuncts; early ambulation and minimal opioid use are the cornerstones of ileus prevention and management. **MONITORING AND DOCUMENTATION** - **Assess and document bowel sounds** in all four quadrants every 4 hours initially, then every 8 hours as the patient improves - **Measure and record abdominal girth** at the umbilicus daily (an increase >5 cm suggests worsening distention) - **Monitor for passage of flatus and stool**; this is a key sign of returning function - **Record NG tube output** if present (color, amount, consistency) - **Monitor intake and output** (IV fluids, oral intake, urine, drains, NG output) - **Assess pain** and the effect of pain management on the patient's ability to ambulate and participate in care - **Note diet tolerance**: nausea, vomiting, or abdominal discomfort after advancing diet **EXPECTED TIMELINE OF ILEUS RESOLUTION** - **Small bowel**: usually functional within 12–24 hours (bowel sounds may return) - **Gastric function**: 24–48 hours - **Colonic function**: 3–5 days (may lag significantly behind) - **Flatus passage**: indicator of colonic function; often day 3–4 post-op - **Bowel movement**: may take 5–7 days post-op, especially if opioids are used Delayed return of bowel function (ileus lasting >5 days) or any worsening (increased pain, distention, vomiting despite NG decompression, fever) raises concern for a **surgical complication** (anastomotic leak, bowel obstruction, peritonitis, sepsis) and must be reported to the surgeon immediately.

Wound dehiscence and evisceration are serious postoperative complications that can occur suddenly and require immediate emergency intervention. **Evisceration is a surgical emergency and a patient-safety-critical situation** that every nurse must be prepared to manage. **DEFINITIONS** **Dehiscence**: The **partial or complete separation of the layers of the surgical wound**. The skin, subcutaneous tissue, and fascia may separate at any or all layers, but the internal organs are still contained. A dehisced wound typically appears as a line of separation, may have serosanguineous drainage, and the patient may report a sensation of "giving way" or "popping." **Evisceration**: The **protrusion of internal organs (viscera)—loops of bowel, omentum, or other abdominal contents—through the open wound onto the abdomen or surgical drape**. This is a full-thickness separation of all wound layers and is immediately visible. The patient may report a sensation of "something giving way" or a gush of warm drainage, and they may actually see the organs protruding. Evisceration is a **true surgical emergency** requiring immediate notification of the surgeon and return to the operating room. **TIMING AND INCIDENCE** - **Peak incidence**: postoperative days **5–7** - **Most common**: after abdominal surgery (laparotomy, cesarean section, bowel resection) - **Can occur**: after any surgery where fascial integrity is compromised, though less common after superficial procedures - **Incidence**: 0.5–3% of abdominal surgeries (varies by surgeon technique, wound care, and patient factors) **RISK FACTORS FOR DEHISCENCE/EVISCERATION** **Patient Factors:** - **Obesity**: excess adipose tissue (fat) has poor blood supply and heals slowly; increased intra-abdominal pressure - **Malnutrition**: inadequate protein and micronutrients impair collagen synthesis and wound strength - **Diabetes**: hyperglycemia impairs immune function and wound healing - **Advanced age**: slower healing, reduced skin elasticity - **Immunosuppression**: corticosteroids, cancer chemotherapy, HIV reduce healing - **Hypoproteinemia** (low serum albumin <3.5 g/dL): indicates protein malnutrition - **Smoking**: nicotine causes vasoconstriction, reducing wound perfusion - **Steroid use**: chronic corticosteroids impair collagen formation - **Anemia**: inadequate oxygen delivery to tissues impairs healing **Operative Factors:** - **Inadequate closure technique**: improper suturing, incorrect knot tying, tension on the fascia, or use of absorbable sutures that dissolve too quickly - **Poor surgical technique**: rough handling of tissues, inadequate hemostasis, foreign bodies in the wound - **Emergency surgery**: less time for surgical planning and execution - **Contaminated wound**: increases infection risk and poor healing **Postoperative Factors:** - **Infection**: surgical site infection significantly weakens wound integrity - **Increased intra-abdominal pressure**: vigorous coughing, straining to void or defecate, vomiting, abdominal distention from ileus or fluid accumulation - **Poor wound care**: inadequate dressing changes, rough handling of dressings, contamination - **Premature drain removal**: if removed too early, fluid accumulates and stresses the wound - **Hematoma or seroma** (fluid collection): these can weaken the wound and predispose to dehiscence **PATHOPHYSIOLOGY OF WOUND FAILURE** The fascia is the strongest layer of the wound and provides structural integrity. For the first 3–5 days post-op, the fascial strength depends entirely on the sutures or staples holding the edges together—there is **minimal tensile strength from healing tissue in this early phase**. If the sutures break (from infection, excessive tension, poor technique) or if excessive abdominal pressure is applied (coughing, straining), the fascia separates. The inflammatory phase of wound healing (days 1–4) is characterized by decreased collagen strength; the proliferative phase (days 5–21) is when new collagen is deposited, but it is not cross-linked and still relatively weak. It is not until 3 weeks post-op that the wound achieves reasonable strength, and not until 6 weeks that most of the final strength is achieved. **CLINICAL PRESENTATION OF DEHISCENCE** - Patient reports a sudden "popping," "giving way," or "tearing" sensation in the wound - **Sudden gush of serosanguineous or sanguineous drainage** (the sutures pull through the tissues) - **Visible line of separation** in the wound; edges gape open - **Wound may or may not be erythematous**; infection may or may not be present - Typically occurs around postoperative **day 5–7** - The patient may report feeling that "something is not right" - Fever may be present if infection precipitated the dehiscence **Dehiscence does not always progress to evisceration**; some wounds separate partially and do not open completely. However, any dehiscence is a serious complication that requires surgical evaluation and likely re-closure. **CLINICAL PRESENTATION OF EVISCERATION (EMERGENCY)** - **Sudden drainage** of large amounts of **serosanguineous fluid** or a **gush of warm fluid** from the wound - **Patient feels "something popping" or "giving way"** and may actually feel or see loops of bowel protruding - **Visible loops of bowel, omentum, or other abdominal organs protruding through the open wound** onto the skin or drape - Evisceration is **immediately recognizable**—it is not subtle - The patient is often in distress, anxious, and frightened - **This is an emergency requiring immediate intervention** **NURSING MANAGEMENT OF EVISCERATION (CRITICAL PROTOCOL)** If you observe or suspect evisceration, follow this emergency protocol: **1. STAY WITH THE PATIENT AND CALL FOR HELP IMMEDIATELY** - Do not leave the patient alone; reassure them and remain calm (your calm presence reduces their anxiety) - Call for assistance; this is a two-person or more job - Notify the surgeon or attending physician immediately—this cannot wait - Alert the operating room; the patient will likely need to return to surgery for re-closure **2. ASSESS THE EXTENT OF EVISCERATION** Quickly determine how much viscera has protruded and how much time has likely elapsed (the longer the organs are exposed, the higher the risk of drying, contamination, and nonviability). **3. COVER THE PROTRUDING VISCERA IMMEDIATELY** **This is the most critical intervention**. Do NOT attempt to push the organs back in—this can cause contamination, trauma to the bowel, and infection. - Use **sterile gauze pads moistened with sterile normal saline** (0.9% NaCl) - Gently cover the protruding organs, keeping them moist to prevent drying and tissue death - The moistened gauze keeps the organs warm and reduces evaporative cooling - Never allow the organs to dry out or become contaminated - If sterile gauze is not immediately available, use the cleanest material available (e.g., a clean sheet that has been placed over the patient) as a temporary cover while sterile supplies are obtained - Some protocols recommend applying warm (not hot), sterile, saline-moistened dressings in layers and then covering with a sterile towel to maintain moisture and warmth **4. POSITION THE PATIENT** - Place the patient in **low Fowler's position** (head of bed slightly elevated, about 15–20°, not flat and not high Fowler's) - **Flex the patient's knees** (place a pillow under the knees) - This position **reduces tension on the abdominal wound** and wound edges, reducing further evisceration and strain on the exposed organs - Keep the patient as still as possible; movement can increase evisceration **5. KEEP THE PATIENT NPO (NOTHING BY MOUTH)** - The patient will likely return to surgery; NPO status is essential to prevent aspiration during anesthesia - Discontinue any oral intake immediately - Ensure IV access is maintained and functioning **6. MONITOR THE PATIENT CLOSELY** - Monitor **vital signs frequently** (every 5–15 minutes): watch for signs of shock (hypotension, tachycardia, decreased consciousness) or sepsis (fever, elevated WBC) - Keep accurate record of **fluid balance**: note any drainage from the wound, IV input, urine output - Assess **pain level** and provide comfort measures; pain increases abdominal pressure and worsens evisceration - Avoid giving strong analgesics that might mask signs of deterioration, but do not leave the patient in severe pain - **Do NOT give oral pain medication** (patient is NPO) - Assess for signs of **peritonitis** (fever, severe pain, rebound tenderness, rigidity) or **sepsis** **7. PREPARE FOR SURGERY** - Ensure **large-bore IV access** is in place (two IVs minimum) to allow rapid fluid or blood product administration - Ensure type and cross-match blood is sent if not already done - Prepare for **pre-operative labs**: CBC, CMP, coagulation studies, blood cultures if infection is suspected - Keep the patient and family informed and provide emotional support; this is frightening, and reassurance is part of nursing care - Do not allow the patient to look at the wound if possible; cover it and the surrounding area **8. DOCUMENT CAREFULLY** Document the **time** evisceration occurred, the **extent of evisceration** (e.g., "approximately 10 cm of bowel loop protruding"), **interventions taken** (time dressing applied, saline used, position changed), **vital signs and patient response**, **time surgeon was notified**, and **time patient left for OR**. **WOUND MANAGEMENT AFTER DEHISCENCE (WITHOUT EVISCERATION)** If a wound separates but organs do not protrude, it is classified as dehiscence. Management: - Notify the surgeon immediately; the wound may require re-closure in the OR - If minor and superficial, the surgeon may permit healing by secondary intention (open wound care with packing, dressing changes, gradual filling in) - Keep the wound clean and dry - Use sterile gauze dressings and change them as often as needed (often daily or twice daily) - If infection is present, culture the wound and initiate antibiotics as ordered - Monitor the wound for signs of healing (granulation tissue formation, reduction in size) or worsening (increased drainage, foul odor, fever, cellulitis of surrounding skin) - Nutritional support: high protein, vitamin C, zinc to support healing - The patient may be discharged home with wound care instructions for self-care or outpatient wound care clinic follow-up **PREVENTION OF DEHISCENCE/EVISCERATION** **Preoperative:** - **Optimize nutritional status**: ensure adequate protein and micronutrients; correct anemia - **Optimize glycemic control**: target blood glucose <180 mg/dL in diabetics (high glucose impairs immune function and healing) - **Encourage smoking cessation** before surgery if possible - **Address comorbidities**: obesity, immunosuppression - Assess risk factors and communicate them to the surgical team **Intraoperative:** - Proper surgical technique: meticulous hemostasis, gentle tissue handling, appropriate wound closure with proper tension and knot tying - Use of interrupted sutures (more secure than continuous) for abdominal fascia - Aseptic technique to reduce infection **Postoperative:** - **Pain control**: adequate analgesia to prevent excessive coughing, straining, and abdominal guarding - **Minimize coughing**: encourage deep breathing (which expands lungs without straining like coughing does), but cough gently if necessary; teach splinting - **Prevent vomiting**: use antiemetics to prevent retching and straining - **Prevent constipation**: encourage ambulation, adequate fluid intake, stool softeners or laxatives as needed to avoid straining - **Meticulous wound care**: keep dressings clean and dry; change as needed; inspect for signs of infection or drainage - **Early drain removal**: once drainage is minimal, drain is removed per surgeon's order to reduce fluid collection - **Support for obese patients**: abdominal binders may provide support and reduce strain on the incision (though evidence is limited) - **Nutritional support**: adequate protein (1.5–2 g/kg daily), vitamin C (500 mg–2 g daily), zinc (15–30 mg daily), iron (if anemic) - **Monitor for infection**: inspect wound, check temperature, monitor labs (WBC); early treatment of infection reduces dehiscence risk - **Educate the patient**: teach proper wound care, activity restrictions (no lifting >5–10 lbs for 4–6 weeks), signs of infection or drainage to report, and the importance of adequate nutrition and rest **LONG-TERM OUTCOMES** After evisceration and re-closure, the patient is at increased risk of **wound infection**, **hernia formation**, and **repeat dehiscence**. Follow-up includes: - Surgical follow-up at 1–2 weeks for suture/staple removal (if not absorbable) - Imaging if hernia is suspected (ultrasound or CT) - Long-term activity restrictions: no heavy lifting or strenuous activity for 8–12 weeks - Nutritional support continued until healing is complete - Risk factors (obesity, diabetes, smoking) are addressed to reduce future surgical complications

Understanding the phases of wound healing is essential for assessing postoperative wounds, anticipating healing timelines, and recognizing when healing is progressing normally versus being delayed by infection or other complications. **TYPES OF WOUND HEALING** **Primary Intention (First Intention)** - **Definition**: The wound edges are **clean, approximated (brought together), and closed** surgically using sutures, staples, or adhesive tape - **Example**: a surgical incision for an appendectomy closed with sutures - **Characteristics**: - Minimal scarring because the wound edges are in direct contact - Faster healing (typically 7–10 days for suture/staple removal, full strength in 3–6 weeks) - Lower infection risk than secondary intention healing - Creates a fine, thin scar if healing proceeds normally **Secondary Intention** - **Definition**: the wound is **left open** to heal from the base upward by **granulation** (new tissue formation) - **Examples**: large contaminated or infected wounds, pressure ulcers, traumatic wounds with extensive tissue loss - **Characteristics**: - Slower healing (weeks to months) - More pronounced scarring and potential contracture (wound contraction) - Used when wound closure would trap infection or when edges cannot be approximated - Requires frequent dressing changes and meticulous wound care - Healing proceeds through angiogenesis (new blood vessel formation) and epithelialization **Tertiary Intention (Delayed Primary Intention)** - **Definition**: the wound is **initially left open**, then **closed surgically at a later date** (typically 3–5 days after the initial injury) - **Examples**: contaminated surgical wounds left open initially to drain, then closed after inflammation subsides; traumatic wounds left open to rule out necrotizing soft tissue infection, then closed - **Characteristics**: - Allows inspection of the wound and drainage of infection before closure - Reduces infection risk compared to immediate closure of contaminated wounds - Faster than secondary intention but more scarring than primary intention - Used strategically in trauma, emergency surgery, or high-risk contaminated wounds **THE FOUR PHASES OF WOUND HEALING** Wound healing is a continuous but overlapping process that occurs in four phases: **1. HEMOSTASIS (Immediate–Minutes)** - **Duration**: immediate, within minutes of injury - **Mechanism**: bleeding stops through platelet aggregation and blood clotting - Platelets adhere to exposed collagen in the wound and aggregate, forming a platelet plug - The coagulation cascade is activated, generating thrombin, which converts fibrinogen to fibrin - Fibrin cross-links form a stable clot that fills the wound and stops bleeding - **Nurse observation**: bleeding is controlled by direct pressure; for surgical incisions, hemostasis is achieved by the surgeon before closure - **Factors that impair hemostasis**: anticoagulants, thrombocytopenia (low platelets), coagulation disorders **2. INFLAMMATORY PHASE (Days 1–4 Post-op, Peak Days 2–3)** - **Duration**: begins immediately and overlaps with hemostasis; peaks around days 2–3 - **Mechanism**: the body responds to injury by: - **Vasodilation** (opening of blood vessels): increases blood flow, causing redness (erythema) and warmth - **Increased vascular permeability**: fluid leaks into tissues, causing swelling (edema) and exudate (drainage) - **Chemotaxis**: immune cells (neutrophils, macrophages, lymphocytes) are attracted to the wound by chemical signals and migrate to the area - **Phagocytosis**: neutrophils and macrophages ingest debris, dead tissue, and bacteria - **Low-grade fever**: inflammatory mediators (cytokines, prostaglandins) raise the body's temperature set point - **Clinical signs**: - Redness (erythema) - Warmth - Swelling (edema) - Pain (from inflammatory mediators and distention) - **Serous or serosanguineous drainage** (composed of plasma, fibrin, and cellular debris) - Increased WBC count (shift left on CBC) - Low-grade fever (especially in first 24 hours) - **Nursing assessment**: these signs are **expected and normal** in this phase; they indicate the body is responding appropriately. Distinguish normal inflammation from infection: - **Normal**: uniform redness, mild warmth, drainage is serous or serosanguineous (not foul-smelling), edges are approximated or granulation is forming - **Infection**: increasing redness, excessive warmth, purulent (pus-like) drainage with foul odor, fever >38.5°C after day 3, increasing pain, possible surrounding cellulitis - **Duration**: days 1–4, but can extend if infection is present **3. PROLIFERATIVE PHASE (Days 5–21, Peak Days 9–12)** - **Duration**: begins around day 5, peaks around days 9–12, can extend to day 21 or beyond - **Mechanism**: the body begins **building new tissue** to close the wound: - **Angiogenesis** (new blood vessel formation): endothelial cells from intact vessels proliferate and form new capillaries that extend into the wound; this gives the wound a red, granular appearance (granulation tissue) - **Fibroblast proliferation and collagen deposition**: fibroblasts (connective tissue cells) migrate into the wound and produce **collagen**, which provides structural strength - **Epithelialization** (formation of new epithelial/skin cells): epithelial cells at the wound edges proliferate and migrate across the wound surface, forming a new layer of skin; appears as a thin pink or reddish edge at the wound margins - **Contraction**: the wound edges gradually move together, reducing the size of the wound (mediated by myofibroblasts, specialized cells with contractile properties) - **Clinical signs**: - **Beefy red, granular appearance** (granulation tissue with new capillaries) - **Bright, shiny appearance** from the wet, vascular tissue - **Pink/reddish edge** at the wound margins (epithelialization) - Decreased drainage (less exudate) - Reduced swelling - Wound feels firmer as collagen is deposited - For surgical incisions: sutures or staples are typically removed around day 7–10, as collagen deposition provides initial strength - **Factors supporting this phase**: - **Protein**: essential for collagen synthesis; adequate intake (1.5–2 g/kg daily) - **Vitamin C (ascorbic acid)**: required for collagen cross-linking; 500 mg–2 g daily - **Zinc**: cofactor for collagen synthesis and protein production; 15–30 mg daily - **Iron**: component of hemoglobin; adequate oxygen delivery supports angiogenesis; treat anemia if present - **Adequate calories**: energy from carbohydrates and fats supports fibroblast proliferation and collagen synthesis - **Oxygen**: hypoxia impairs angiogenesis and collagen deposition; ensure adequate oxygenation and perfusion - **Absence of infection**: infection prolongs inflammation and delays proliferation - **Duration**: typically 5–21 days for surgical wounds with primary closure; can extend longer for larger wounds or secondary intention healing **4. MATURATION/REMODELING PHASE (Weeks 3–2 Years or More)** - **Duration**: begins around week 3 and continues for months to years; most remodeling is complete by 6–12 months, but can continue for up to 2 years - **Mechanism**: the wound undergoes **restructuring and strengthening**: - **Collagen remodeling**: immature collagen (type III) is replaced with mature collagen (type I), which is stronger and more organized - **Angiogenesis reversal**: excess capillaries regress; blood flow decreases - **Scar maturation**: the scar gradually becomes paler, flatter, and less noticeable as collagen organization improves and pigment changes - **Tensile strength increases**: the wound gradually gains strength, reaching 80% of original tissue strength by 3 months and 100% by 6 months (though scar tissue never reaches 100% of original tissue strength—scars remain somewhat weaker) - **Clinical signs**: - Scar appears paler and flatter - Scar becomes less tender - Wound edges are firmly closed - Epithelialization is complete - No drainage - Full mobility and function restored (for joints affected by the wound) - **Factors affecting scar appearance**: - **Genetics**: some people form thick, raised scars (hypertrophic or keloid scars) - **Location**: scars in areas of high tension or mobility (joints, neck) may be more pronounced - **Skin tension lines**: scars aligned with natural skin tension lines (Langer's lines) are less noticeable - **Age**: older adults may have more prominent scars due to decreased collagen reorganization - **Infection**: delays maturation; infected wounds may have more severe scarring - **Duration**: 6–12 months for most scars to mature; hypertrophic and keloid scars may continue to evolve for 1–2 years **ASSESSMENT OF SURGICAL WOUNDS** Assess wounds **daily** (or per facility protocol) and **any time there is a concern**: **Wound Appearance:** - **Color**: dark red or beefy red (indicating good perfusion and granulation), pale or blanched (poor perfusion), yellow or black (necrotic tissue or eschar), pink (epithelialization) - **Size and shape**: measure length, width, and approximate depth (if there is undermining or tunneling); note any changes from previous assessments - **Approximation**: are edges well-approximated (touching), gaping, or rolled inward (eversion)? - **Presence of sutures/staples**: are they intact, and are any areas of dehiscence present? - **Epithelialization**: is there a pink edge indicating new skin growth? - **Granulation**: is new, red, granular tissue present (normal in secondary intention healing)? - **Necrotic tissue**: any black, white, or yellow tissue that is not viable? **Drainage (Exudate):** - **Amount**: small, moderate, or large (quantify: e.g., "3x3 cm of bloody drainage on dressing") - **Color**: - **Serous**: clear to pale yellow (normal, especially days 1–3) - **Serosanguineous**: pink or light bloody (normal, especially days 1–5) - **Sanguineous**: bright red or dark red (normal immediately post-op, concerning if continues beyond first 24 hours) - **Purulent**: thick, opaque, yellow or greenish (indicates infection, culture if present) - **Foul-smelling**: indicates bacterial overgrowth or anaerobic infection - **Feculent**: fecal smell (indicates breakdown of bowel anastomosis or contamination) - **Consistency**: thin and serous, thick and purulent, bloody and clotted - **Frequency of dressing saturation**: how often does the dressing need changing? **Signs Around the Wound:** - **Erythema (redness)**: how far from the incision? Is it uniform or localized? - **Edema (swelling)**: is it localized to the wound or involving the surrounding tissue? - **Warmth**: is the wound area warm to touch compared to surrounding skin? - **Induration** (hardening): is there firmness or hardness around the wound? - **Cellulitis**: spreading redness, warmth, and swelling indicating infection of surrounding tissues (requires antibiotics) - **Fluctuance**: collection of fluid (abscess) that may require drainage **Patient Symptoms:** - **Pain**: is pain increasing, stable, or decreasing? Does it correspond to the phase of healing? - **Tenderness**: is the wound tender to touch? Is tenderness localized or widespread? **Signs of Infection:** - Fever >38.5°C (especially after postoperative day 3) - Purulent drainage with foul odor - Increasing erythema, edema, warmth, and pain - Systemic signs: elevated WBC (>12,000/μL), tachycardia, tachypnea - Spreading cellulitis or lymphangitis (red streaks extending from wound) **DRESSING AND DRAIN CARE** **Dressing Care:** - **Primary dressing** (touching the wound): must be sterile and appropriate for the wound type - **Gauze dressings**: absorb exudate; allow visualization of the wound; must be changed frequently if exudate is heavy; can adhere to the wound and cause trauma when removed - **Transparent films**: waterproof; allow visualization; good for minor wounds with minimal drainage; can trap moisture and promote bacterial growth - **Foam dressings**: absorb moderate to heavy exudate; maintain moist environment; cannot be used on dry wounds - **Hydrocolloid**: absorb moderate drainage; promote moist healing; create a gel as they absorb fluid - **Alginate** (from seaweed): absorb heavy exudate; promote moist environment; good for weeping wounds - **Collagen dressings**: promote tissue formation; expensive; used for specific wound types - **Change dressings**: - Immediately if saturated with blood or exudate - Per facility protocol (typically daily for surgical wounds in the first 24–48 hours, then every 2–3 days or as needed) - More frequently if infection is present or if the wound is open healing (may require daily to twice-daily changes) - **Technique**: - Use aseptic technique (clean gloves for clean wounds, sterile gloves if ordered) - Remove the old dressing gently, supporting the skin as you peel it off to avoid skin trauma - Assess the wound before applying the new dressing - Cleanse the wound if ordered (e.g., with normal saline or as prescribed) - Pat dry, not rub - Apply the dressing carefully, avoiding excessive pressure or tension - Secure the dressing with tape or adhesive, avoiding tape that is too tight or that contains latex (if allergy present) - Document the appearance of the wound and any changes **Drain Care:** - See the section on surgical drains below - Drains are removed when output becomes minimal (typically <25–50 mL per 24 hours), usually around postoperative day 3–7 - Maintain sterile technique when handling drains - Secure drains to prevent accidental dislodgement - Empty and record output regularly **FACTORS SUPPORTING OPTIMAL WOUND HEALING** **Nutrition:** - **Protein**: 1.5–2 g/kg daily (supports collagen synthesis and immune function) - **Carbohydrates**: adequate calories (30–35 kcal/kg) provide energy - **Fat**: 1–1.5 g/kg daily (supports cell membrane synthesis and immune function) - **Vitamin C**: 500 mg–2 g daily (required for collagen cross-linking) - **Vitamin A**: 5000 IU daily (supports epithelialization) - **Zinc**: 15–30 mg daily (cofactor for collagen synthesis) - **Iron**: prevent anemia; maintain hemoglobin >10 g/dL for adequate oxygen delivery - **Encourage oral intake**: high-protein foods, adequate fluids (2–3 L daily unless contraindicated) **Oxygenation and Perfusion:** - Adequate respiratory function: deep breathing, adequate oxygenation (SpO2 >94%) - Adequate cardiovascular perfusion: normal blood pressure, heart rate, and hemoglobin - Avoid smoking: nicotine causes vasoconstriction and reduces wound blood flow - Treat anemia if present - Optimize glycemic control: target blood glucose <180 mg/dL (high glucose impairs leukocyte function and collagen synthesis) **Infection Prevention:** - Meticulous wound care: aseptic technique, clean dressings - Early detection and treatment of infection: culture if purulent drainage, antibiotics as ordered - Prophylactic antibiotics if indicated by surgery type (most elective surgeries receive prophylactic antibiotics within 1 hour of incision) **Comfort and Mobility:** - Adequate pain control: enables the patient to move, cough, breathe deeply, and comply with mobility - Early ambulation: promotes circulation and healing - Proper positioning: avoid prolonged pressure on wounds **Comorbidity Management:** - Diabetes: tight glycemic control (glucose 140–180 mg/dL intraoperatively, target <180 post-op) - Obesity: optimal positioning, special wound care attention, early mobility - Immunosuppression: may require extended prophylactic antibiotics, more frequent wound checks - Steroid use: slow healing; monitor closely **DELAYED HEALING: CAUSES AND MANAGEMENT** **When should you be concerned?** Wound healing progresses on a predictable timeline. If the wound is not progressing as expected, investigate: **Causes of Delayed Healing:** 1. **Infection**: most common; presents with fever, purulent drainage, increasing pain/redness/swelling 2. **Hypoxemia**: poor oxygenation from pulmonary complications, heart disease, or anemia 3. **Malnutrition**: inadequate protein, calories, or micronutrients 4. **Diabetes with poor glycemic control**: high glucose impairs immune function and collagen synthesis 5. **Hematoma or seroma** (fluid collection): pressure on wound inhibits healing; may require drainage 6. **Excessive tension on the wound**: sutures too tight; wound edges under stress 7. **Steroid use**: impairs collagen synthesis 8. **Smoking**: vasoconstriction reduces blood flow 9. **Immunosuppression**: HIV, cancer chemotherapy, other causes 10. **Chronic diseases**: renal disease, liver disease 11. **Radiation therapy**: tissue damage and fibrosis **Management:** - **Culture and treat infection**: if signs of infection, culture drainage and start broad-spectrum antibiotics pending results - **Optimize nutrition**: high protein, vitamin C, zinc, iron - **Control blood glucose**: especially in diabetics - **Ensure adequate oxygenation**: treat pulmonary complications, maintain SpO2 >94% - **Avoid smoking** - **Monitor closely**: assess wound daily; report lack of progress to the surgeon - **Consider wound care specialist consultation**: for non-healing wounds

Surgical drains are placed during or immediately after surgery to remove fluid (blood, serous fluid, or other exudate) from the surgical site. This prevents fluid accumulation (hematoma or seroma), which can lead to infection, impaired healing, and wound complications. Understanding drain types, maintenance, and removal criteria is essential for postoperative nursing care. **PURPOSE OF SURGICAL DRAINS** - **Prevent fluid collection**: remove blood and exudate that could accumulate and create a favorable environment for bacterial growth - **Promote healing**: by reducing fluid buildup, drains allow tissues to come into direct contact and heal more quickly - **Allow early detection of complications**: changes in drain output (color, amount, odor) can signal infection, bleeding, or other issues - **Reduce infection risk**: hematomas and seromas have high infection rates; drains reduce this risk **TYPES OF SURGICAL DRAINS** **1. Penrose Drain** - **Description**: a soft, flat, rubber tube (looks like a thin rubber strap) - **Type of drainage**: passive (no suction) - **Mechanism**: gravity and pressure from surrounding tissues allow fluid to drain out; fluid is absorbed into gauze dressings surrounding the drain - **Placement**: typically exiting through the main incision or a separate small opening (stab wound) - **Nursing care**: - Change dressings frequently as fluid drains onto gauze - Measure and record drainage on each dressing change - Keep the drain area clean and dry - Use aseptic technique - Observe for signs of infection (foul odor, purulent drainage) - The drain gradually moves outward (protrudes more) as tissues heal; this is normal - Removal: typically removed when drainage becomes minimal (usually 3–7 days post-op); can be removed by the surgeon or, in some facilities, by nurses per protocol (often by gradually shortening the drain—cutting off a short segment daily over several days—allowing the opening to close gradually) - **Advantages**: simple, inexpensive, low risk - **Disadvantages**: passive drainage is less effective than suction drains; frequent dressing changes required; risk of infection if not kept clean **2. Jackson-Pratt (JP) Drain** - **Description**: a closed suction drain consisting of a flexible tube with multiple small perforations (holes) connected to a **collapsible bulb or reservoir** that creates gentle negative pressure (suction) - **Type of drainage**: active closed suction - **Mechanism**: the bulb is compressed (squeezed) to evacuate air and create a vacuum; this negative pressure sucks fluid from the wound into the drain - **Placement**: typically exits through a stab wound (small opening separate from the main incision); the end of the drain is capped with a small valve that must remain patent - **Nursing care**: - **Maintain suction**: the bulb must remain compressed (squeezed) to maintain the vacuum. Every 4–8 hours (or per facility protocol), check that the bulb is compressed; if it has re-expanded, it has lost suction and must be re-compressed - **Empty the bulb**: when the bulb fills with fluid (usually darkens in color from blood or fluid), carefully open the valve, pour the contents into a graduated container for measurement and observation, and then re-compress the bulb before closing the valve - **Measure and record output**: document the volume, color, and consistency of fluid each time the bulb is emptied; drainage gradually changes from sanguineous (bloody) to serosanguineous (pink) to serous (clear yellow) - **Secure the drain**: tape the drain and tubing to prevent accidental dislodgement - **Check for patency**: a sudden decrease in output or significant swelling around the drain suggests the drain is blocked; notify the surgeon; do NOT attempt to flush the drain without a physician order - **Inspect the insertion site**: redness, swelling, or drainage around where the drain exits the skin may indicate infection - **Removal criteria**: typically removed when daily output is <25–50 mL (varies by surgeon preference and type of surgery) - **Removal process**: the surgeon or, in some facilities, nurses per protocol; the drain is gently withdrawn and the opening is covered with a small adhesive bandage - **Advantages**: active suction more effective than passive drainage; closed system reduces infection risk; accurate measurement of output; can remain in place longer if needed - **Disadvantages**: more expensive; requires maintenance to keep suction intact; patient must be aware to report if bulb re-expands (lost suction) **3. Hemovac Drain** - **Description**: similar to the JP drain but with a **larger, accordion-shaped reservoir** instead of a bulb - **Type of drainage**: active closed suction - **Mechanism**: the reservoir is compressed to create vacuum; fluid drains into the reservoir - **Nursing care**: - Similar to JP drain: maintain compression/suction, empty when full, measure and record output, check for patency and insertion site signs, secure the drain - The larger reservoir requires emptying less frequently than a JP bulb (typically daily or every other day) - **Compression technique**: the accordion folds are pressed together and held in place by two snaps or clips; releasing them allows the vacuum to dissipate - **Advantages**: larger capacity reduces frequency of emptying; effective suction drainage - **Disadvantages**: bulkier than JP; more expensive **DRAIN MANAGEMENT PROTOCOL** **Upon Inspection:** - **Verify secure placement**: the drain should be taped securely to prevent accidental dislodgement - **Verify dressing**: the area around the drain exit should be clean and dry; change dressing if soiled - **Verify suction** (for active drains): is the bulb or reservoir compressed? Is the valve working? **Every 4–8 Hours (or per facility protocol):** - **Check suction device**: if using an active drain, verify that the bulb is compressed or the reservoir is compressed (maintained vacuum). If re-expanded, re-compress it. - **Empty if full**: when the reservoir is half to three-quarters full, empty it **Upon Emptying (Active Drains):** - Use aseptic technique; wear clean gloves - Place a graduated container under the outlet valve - Carefully open the valve (typically by pressing a button or turning a valve) and allow fluid to drain into the container - Measure the volume using the graduated container - Note the **color** (sanguineous = bright red/dark red; serosanguineous = pink; serous = clear yellow; purulent = thick, yellow/green; feculent = brown with foul odor) - Note the **odor** (normal is no odor or slight odor; foul odor suggests infection) - Note the **presence of clots or debris** (small clots are normal; large clots or excessive debris may indicate bleeding) - Re-compress the reservoir or bulb (squeeze out air to restore vacuum) before closing the valve - Close the valve securely - Document: date/time, volume, color, odor, any abnormalities **Dressing Changes (Penrose or if JP/Hemovac has a dressing):** - Use aseptic technique; wear sterile gloves if ordered (or clean gloves per facility protocol) - Remove old dressing gently - Inspect the drain insertion site for signs of infection (redness, warmth, drainage, abscess) - Cleanse the area with normal saline or as ordered - Pat dry - Apply a new dressing (typically gauze to absorb drainage; may be placed loosely under the drain without taping if drain is active and self-contained) - Secure the drain tubing to prevent tension - Document appearance of the insertion site **Troubleshooting:** **Problem: Drain output has decreased significantly or stopped** - Possible causes: drain is clogged (kinked, clotted, or positioned against tissue), insertion site is healing over, or the vacuum (for active drains) has been lost - Nursing action: - Check if the drain tubing is kinked; straighten it gently - For active drains, verify suction is maintained - Gently move the patient to reposition the drain - Do NOT attempt to flush the drain or manipulate it unless ordered - Notify the surgeon if output remains low or if swelling develops around the drain - The surgeon may order drain repositioning or removal **Problem: Drain output has increased suddenly or is bright red** - Possible causes: bleeding (reopened vessel), drain has shifted to a more dependent position, or vacuum has increased - Nursing action: - Assess for signs of hemorrhage (tachycardia, hypotension, restlessness, pale skin) - Monitor vital signs closely - Measure and record output - Notify the surgeon; may need to return to OR for hemostasis (stopping bleeding) **Problem: Output is foul-smelling or purulent** - Possible cause: infection (surgical site infection, drain infection, or contamination) - Nursing action: - Culture the drainage if ordered (the surgeon may order culture of drain fluid) - Notify the surgeon - Maintain meticulous dressing changes and aseptic technique - Administer antibiotics as ordered **Problem: Patient has signs of infection around the drain (redness, warmth, swelling, pain, fever)** - Possible cause: drain site infection - Nursing action: - Inspect the insertion site closely; note any abscess or fluctuance - Notify the surgeon; the drain may need to be removed or repositioned - Culture drainage if ordered - Administer antibiotics as ordered - Monitor vital signs for fever and systemic signs of infection **DRAIN REMOVAL** **Removal Criteria:** - **Low output**: typically <25–50 mL per 24 hours (varies by surgeon and drain type) - **Change in character**: output has changed from sanguineous/serosanguineous to serous (clear) - **No signs of infection**: insertion site is clean without redness, warmth, or drainage - **Adequate time post-op**: typically at least 3–5 days post-op to ensure the tissue has begun healing - **Surgeon's order**: removal is a physician order; do not remove a drain without explicit order **Removal Process:** - Notify the patient that the drain will be removed and explain the procedure - Use aseptic technique; wear sterile gloves - The drain is gently, steadily withdrawn (typically by the surgeon, in some facilities by the nurse per protocol) - There may be a small amount of drainage as the drain is withdrawn; be prepared with gauze - Once the drain is removed, the opening is covered with a small adhesive bandage or allowed to air dry, depending on surgeon preference - Document the time of removal and the appearance of the drain and insertion site - Assess for signs of fluid reaccumulation over the following hours/days (swelling, warmth, fluctuance); if fluid reaccumulates, the surgeon may order a new drain or other intervention (such as percutaneous aspiration) **SPECIAL CONSIDERATIONS** **Jackson-Pratt Drains in the Philippines:** In Philippine hospitals and clinics, JP drains are commonly used after major abdominal surgeries, orthopedic procedures, and breast surgeries. Ensuring proper maintenance—especially keeping the bulb compressed to maintain vacuum—is critical. In resource-limited settings where dressing supplies are limited, prioritize keeping the drain clean and the bulb functioning over frequent dressing changes. **Multiple Drains:** Patients may have multiple drains (e.g., one in the main wound and one in a dependent pocket). Label each drain clearly (e.g., "Right lower quadrant JP", "Left side JP") and record output separately. Do not allow drains to kink or get tangled with each other or other tubing. **Drain Care During Ambulation:** Patients with drains can and should ambulate early. Secure the drain tubing to the patient's gown or bedding to prevent tension or accidental dislodgement during movement. The patient should be aware of the drain and instructed not to pull on it. Some drains can be pinned to the gown at chest level and then allow the tubing to loop down to the drainage bulb or reservoir.