Hypertensive & Metabolic Disorders of Pregnancy - Summary
Hypertensive and metabolic disorders represent a major source of maternal morbidity and mortality in the Philippine healthcare context, making this chapter critical for NLE preparation. These conditions—including preeclampsia, eclampsia, HELLP syndrome, gestational diabetes mellitus (GDM), and hyperemesis gravidarum—require rapid assessment, precise pharmacological management (particularly magnesium sulfate), and vigilant monitoring. Under RA 9173 (Philippine Nursing Act), nurses play a pivotal role in early detection, drug administration, and patient education across all levels of healthcare delivery, from community health centers (barangay health stations) to tertiary obstetric centers. This chapter emphasizes high-alert medication management, nursing process application using NANDA diagnoses, and Maslow-based prioritization to prevent life-threatening complications and optimize fetal outcomes.
Key concepts
Hypertensive Disorders Classification and Blood Pressure Thresholds
Importance
Accurate classification drives treatment intensity and delivery timing. Understanding these distinctions is essential for triage decisions in Philippine health facilities and for recognizing when escalation to tertiary care is needed. The NLE emphasizes that preeclampsia diagnosis requires EITHER hypertension + proteinuria OR hypertension + end-organ signs, making this a high-yield testing area.
Hypertensive disorders in pregnancy are classified based on onset timing, presence of proteinuria, and end-organ involvement. Gestational hypertension is defined as blood pressure ≥140/90 mmHg after 20 weeks of gestation without proteinuria and resolves postpartum. Preeclampsia is characterized by BP ≥140/90 after 20 weeks WITH proteinuria (≥0.3 g in 24 hours or ≥1+ on dipstick) OR, in the absence of proteinuria, with new-onset end-organ involvement such as thrombocytopenia (<100,000/µL), impaired hepatic or renal function, pulmonary edema, or cerebral/visual symptoms. Eclampsia represents preeclampsia plus tonic-clonic seizures not attributable to other causes. Chronic hypertension exists before pregnancy or before 20 weeks. Chronic hypertension with superimposed preeclampsia occurs in women with pre-existing hypertension who develop new proteinuria or worsening end-organ manifestations after 20 weeks—this group carries the highest risk for adverse maternal and fetal outcomes. Severe features of preeclampsia begin at BP ≥160/110 mmHg or with symptoms like severe headache, visual disturbances, epigastric pain, hyperreflexia with clonus, oliguria, pulmonary edema, thrombocytopenia, or elevated liver enzymes.
Pathophysiology of Preeclampsia: Vasospasm and Endothelial Dysfunction
Importance
Understanding this mechanism is critical for nursing practice: it explains why left-lateral positioning (maximizes placental perfusion), seizure precautions (vasospasm can trigger seizures), cautious fluid administration with pump control and strict output monitoring, and why magnesium sulfate (relaxes vascular smooth muscle, raises seizure threshold) is the therapeutic cornerstone. The NLE tests pathophysiology-to-intervention connections relentlessly.
The fundamental pathology underlying preeclampsia is abnormal placentation leading to generalized vasospasm and endothelial dysfunction. Inadequate invasion of the spiral arteries by trophoblastic tissue results in poor placental perfusion. This triggers release of placental factors (soluble fms-like tyrosine kinase-1 [sFlt-1], soluble endoglin) that damage the maternal endothelium, increasing vascular permeability and vasoconstriction. Vasospasm reduces blood flow to all organs: placenta (fetal growth restriction, abruption), kidneys (proteinuria, oliguria, elevated creatinine), liver (epigastric pain, elevated enzymes, potential rupture), brain (headache, seizures), and eyes (visual disturbances, cortical blindness). Increased capillary permeability causes fluid to shift OUT of the intravascular space into tissues (peripheral, pulmonary, and cerebral edema) while the intravascular compartment becomes volume-depleted, creating a paradoxical state: the woman is clinically edematous and hemoconcentrated (elevated hematocrit) yet intravascularly hypovolemic. This explains why aggressive diuretics and routine IV fluid boluses are contraindicated—they worsen the intravascular deficit and precipitate pulmonary edema.
Magnesium Sulfate: Dosing, Therapeutic Range, Toxicity, and Antidote
Importance
This is a CRITICAL, HIGH-YIELD NLE topic. The exam tests every detail: exact loading dose (4–6 g), maintenance (1–2 g/hr), therapeutic level (4–7 mEq/L), and the sequence of toxicity signs (DTRs first, then RR, then output). Nurses must monitor DTRs and RR before EVERY dose and hold infusions when reflexes are absent or RR <12. This is a core competency for maternal safety and falls within RA 9173 scope of nursing practice regarding high-alert medication administration.
Magnesium sulfate is the gold-standard medication for prevention and treatment of seizures in preeclampsia and eclampsia. It is a CNS depressant that relaxes smooth muscle and raises the seizure threshold. It is classified as a high-alert medication due to its narrow therapeutic-to-toxic ratio and potential for severe adverse effects. LOADING DOSE: 4–6 g IV over 15–30 minutes (often given as 4 g IV bolus over 5–10 min, then 2 g over 10–20 min to complete the 6 g load, depending on protocol). MAINTENANCE: 1–2 g/hour via continuous IV infusion on an infusion pump (always use a pump; never push maintenance). THERAPEUTIC SERUM LEVEL: 4–7 mEq/L (approximately 4.8–8.4 mg/dL). Below 4 mEq/L, seizure prevention is inadequate; above 7 mEq/L, toxicity emerges. SIGNS OF MAGNESIUM TOXICITY (in order of appearance as level rises): (1) Loss of deep tendon reflexes (DTRs)—the EARLIEST warning sign, occurring around 8–10 mEq/L; (2) Respiratory depression—respiratory rate drops below 12/min (around 10–12 mEq/L); (3) Oliguria—urine output falls below 30 mL/hr (drug accumulates because magnesium is renally cleared); (4) Decreased level of consciousness, hypotension, and at very high levels, cardiac and respiratory arrest. ANTIDOTE: Calcium gluconate 1 g (10 mL of 10% solution) IV, given slowly over approximately 3 minutes. Calcium acts as a physiological antagonist to magnesium and reverses CNS and cardiac depression. Keep calcium gluconate immediately available at the bedside during any magnesium infusion.
Monitoring Parameters Before and During Magnesium Sulfate Infusion
Importance
Safe magnesium administration requires meticulous monitoring discipline. The NLE tests this heavily because it directly prevents maternal respiratory failure, cardiac arrest, and neonatal respiratory depression. In the Philippine context, where many facilities may not have laboratory capacity for rapid magnesium levels, nurses must rely on clinical assessment skills—this is a competency tested across all healthcare delivery levels.
Before initiating magnesium sulfate and before each dose (or hourly during maintenance), the nurse must systematically assess and document: (1) Deep tendon reflexes (patellar reflex is most commonly tested; assess for briskness, sustained clonus, or absence); (2) Respiratory rate (must be ≥12/min); (3) Blood pressure (baseline and trends); (4) Urine output (must be ≥30 mL/hr; oliguria indicates drug accumulation); (5) Level of consciousness and orientation; (6) Fetal heart rate and uterine activity (if antepartum); (7) Serum magnesium level (if ordered); (8) Serum creatinine (to assess renal function); (9) Signs of CNS irritability (headache, visual changes). If DTRs are absent or respiratory rate falls below 12/min or urine output is less than 30 mL/hr, HOLD the infusion immediately and notify the physician. In Philippine practice, many nurses work in resource-limited settings where serum magnesium levels may not be immediately available; in these cases, clinical monitoring (DTRs and RR) becomes the primary safety assessment tool.
HELLP Syndrome: Definition, Risk, and Nursing Considerations
Importance
HELLP syndrome carries one of the highest maternal mortality rates among hypertensive disorders. Recognition of the right-upper-quadrant pain triad and restraint from aggressive liver palpation are essential safety practices. The NLE tests whether students recognize HELLP as a distinct obstetric emergency requiring rapid delivery and intensive supportive care.
HELLP syndrome is a severe variant of preeclampsia with a triad of findings: Hemolysis (microangiopathic hemolytic anemia with elevated indirect bilirubin, low haptoglobin, schistocytes on blood smear), Elevated Liver enzymes (AST and ALT >2x upper limit of normal, indicating hepatocellular injury), and Low Platelets (<100,000/µL, indicating consumptive coagulopathy). HELLP typically presents with right-upper-quadrant pain (from hepatic distension or ischemia), nausea, malaise, and sometimes jaundice. It dramatically increases the risk of disseminated intravascular coagulation (DIC), hepatic rupture, placental abruption, acute renal failure, and pulmonary edema. Laboratory findings show evidence of hemolysis (elevated bilirubin, elevated LDH, low haptoglobin), thrombocytopenia, and coagulopathy. Management includes delivery (the definitive treatment), magnesium sulfate for seizure prophylaxis, blood product transfusion as needed, and supportive care. A critical nursing point: AVOID palpating the liver in HELLP syndrome, as hepatic rupture is a catastrophic complication that can be precipitated by physical manipulation.
Antihypertensive Agents Safe in Pregnancy: Mechanism, Dosing, and Contraindications
Importance
The NLE emphasizes that ACE inhibitors and ARBs are teratogenic—this is tested in almost every antihypertension question. Knowing which agents are safe and their dosing profiles ensures safe prescribing and medication administration aligned with RA 9173 competencies. In Philippine practice, labetalol and nifedipine are commonly available in both primary and tertiary settings.
Severe hypertension in pregnancy (BP ≥160/110 mmHg) increases maternal risk of stroke, myocardial infarction, and renal failure; therefore, antihypertensive therapy is indicated for severe features. SAFE AGENTS: (1) Hydralazine: a direct-acting vasodilator; 5–10 mg IV push for acute severe hypertension; onset 5–15 min, duration 3–4 hrs; monitor for maternal hypotension and reflex tachycardia, which can compromise placental perfusion. (2) Labetalol: a combined alpha- and beta-blocker; 20 mg IV initially, then escalating doses (40 mg, 80 mg) every 10 min up to a cumulative 220 mg; onset 5–10 min, duration 3–6 hrs; avoid in asthma (bronchospasm), heart failure (negative inotropy), and bradycardia. (3) Nifedipine (immediate-release): a calcium channel blocker; 10–20 mg oral, repeat every 20–30 min; onset 15–30 min; monitor for hypotension. (4) Methyldopa: a central-acting agent; used for oral and chronic/long-term control; slower onset than IV agents. CONTRAINDICATED AGENTS: ACE inhibitors (enalapril, lisinopril) and angiotensin-II receptor blockers (losartan, valsartan) are ABSOLUTELY CONTRAINDICATED in pregnancy because they cause fetal renal damage, oligohydramnios, intrauterine growth restriction, and fetal/neonatal death, especially in the second and third trimesters.
Eclamptic Seizure: Priority Care and Post-Seizure Management
Importance
Eclamptic seizures are life-threatening obstetric emergencies. The NLE tests the exact sequence of actions—particularly the emphasis on turning to the left side FIRST, never restraining, and never forcing anything into the mouth. These principles align with basic life support and protect both mother and fetus. In Philippine emergency obstetric care protocols, eclampsia management is a core competency for all nurses.
An eclamptic seizure is a tonic-clonic convulsion occurring in a woman with preeclampsia, representing a medical emergency. During the seizure, the PRIORITY is protecting the airway and ensuring maternal safety. Nursing actions: (1) Remain calm and do NOT restrain the woman (restraint increases the risk of injury); (2) Turn the woman onto her LEFT side immediately (left-lateral position maximizes placental perfusion and protects the airway from aspiration); (3) Protect from injury—keep side rails padded and up, move hard objects away; (4) NEVER force anything into the mouth (risk of dental damage and airway obstruction); (5) Loosen constrictive clothing; (6) Time the seizure; (7) Have suction and oxygen readily available at the bedside. POST-SEIZURE ACTIONS: (1) Suction oral secretions gently; (2) Administer oxygen to maintain SpO2 >95%; (3) Assess maternal vital signs, neurological status, and any injuries; (4) Perform fetal assessment (check fetal heart rate and assess for signs of abruption or fetal distress); (5) Notify the physician immediately; (6) Prepare for delivery (vaginal or cesarean, depending on maternal and fetal condition and cervical readiness); (7) Continue magnesium sulfate infusion; (8) Document seizure duration, characteristics, and response; (9) Provide reassurance and emotional support to the woman and family. Delivery is the ONLY definitive treatment for eclampsia; seizures may recur if pregnancy is prolonged.
Gestational Diabetes Mellitus (GDM): Screening, Diagnosis, and Glycemic Targets
Importance
GDM screening and diagnosis is a routine component of prenatal care that the NLE tests. Understanding the two-step screening process (50-g challenge → 3-hour OGTT) and the specific glycemic targets is essential. In the Philippine context, GDM prevalence is rising with increasing obesity; nurses in community health centers often perform the initial screening and educate women about results.
Gestational diabetes mellitus is glucose intolerance first recognized during pregnancy. It occurs because placental hormones—human placental lactogen (hPL), progesterone, cortisol, and prolactin—create insulin resistance; when maternal pancreatic beta cells cannot produce enough insulin to overcome this resistance, hyperglycemia develops. SCREENING (24–28 weeks gestation): A 50-gram glucose challenge test (nonfasting, no special preparation) is offered to all pregnant women. If the 1-hour blood glucose is ≥140 mg/dL (or ≥135 mg/dL in some protocols), a 3-hour 100-gram oral glucose tolerance test (OGTT) is performed to confirm the diagnosis. DIAGNOSTIC CRITERIA (3-hour 100-g OGTT): Normal values are: fasting <95 mg/dL, 1-hour <180 mg/dL, 2-hour <155 mg/dL, 3-hour <140 mg/dL. GDM is diagnosed if TWO or more values are at or above the cutoff (some protocols require only one elevated value; verify local guidelines). GLYCEMIC TARGETS IN PREGNANCY: Fasting blood glucose <95 mg/dL, 1-hour postprandial <140 mg/dL, 2-hour postprandial <120 mg/dL. These targets aim to prevent maternal hyperglycemia-induced fetal hyperinsulinemia and its sequelae.
GDM Management: Diet, Exercise, Insulin, and Fetal/Neonatal Risks
Importance
GDM management tests the student's understanding of diabetes pathophysiology in pregnancy, pharmacology (why insulin is safe), and fetal/neonatal consequences. The NLE emphasizes the cascade: maternal hyperglycemia → fetal hyperinsulinemia → macrosomia, hypoglycemia, respiratory distress. Nurses must educate patients on the importance of glycemic control to prevent these complications and reassure that GDM usually resolves after delivery.
MATERNAL MANAGEMENT: The cornerstone of GDM treatment is medical nutrition therapy and exercise; approximately 85% of women achieve glycemic control with diet alone. A registered dietitian should counsel the woman on a controlled-carbohydrate diet with consistent meal timing; carbohydrates should comprise 40–45% of calories and be complex (whole grains, legumes) rather than simple sugars. Regular physical activity (walking, swimming) 3–4 times per week for 150 min/week improves insulin sensitivity. Women are taught to perform self-monitoring of blood glucose (fasting and 1–2 hours after meals) using a glucometer. If diet and exercise do not achieve glycemic targets within 1–2 weeks, insulin is initiated. INSULIN IS THE SAFEST GLUCOSE-LOWERING AGENT IN PREGNANCY because it does not cross the placenta and has decades of safety data. Some oral agents (metformin, glyburide) are used in some centers, but insulin remains the standard of care. Insulin regimens typically include a long-acting basal insulin (NPH, glargine) plus rapid-acting before meals (lispro, aspart). MATERNAL RISKS OF GDM: Preeclampsia (2–3 fold increased risk), polyhydramnios (from fetal hyperglycemia and osmotic diuresis), urinary and candidal infections (hyperglycemia impairs immune function), and increased cesarean delivery rate. FETAL/NEONATAL RISKS: (1) Macrosomia (birth weight >4,000 g)—from fetal hyperinsulinemia stimulated by maternal hyperglycemia; large infants carry increased risk of shoulder dystocia, birth trauma, and operative delivery. (2) Neonatal hypoglycemia—fetal beta cells produce excessive insulin in response to maternal hyperglycemia; after delivery, when the maternal glucose source is cut off, the infant's own insulin causes rapid hypoglycemia. (3) Respiratory distress syndrome—fetal hyperinsulinemia delays surfactant production, delaying lung maturity. (4) Hyperbilirubinemia—from hemolysis and immature hepatic clearance. (5) Congenital anomalies (if pre-existing diabetes, not GDM).
GDM Postpartum: Neonatal Care, Maternal Screening, and Long-Term Risk
Importance
This topic bridges pregnancy and the postpartum period, emphasizing the long-term implications of GDM. The NLE tests neonatal hypoglycemia recognition and early feeding strategies, as well as maternal postpartum screening recommendations. In Philippine practice, many community health workers educate GDM mothers on these issues at prenatal visits.
Immediately after delivery, the newborn of a GDM mother requires close monitoring for hypoglycemia. Because the fetus has been exposed to maternal hyperglycemia, fetal pancreatic beta cells have been stimulated to produce excess insulin. After the umbilical cord is clamped, the fetal glucose supply is cut off, but the infant's own hyperinsulinemia continues, causing rapid neonatal hypoglycemia (usually within 1–2 hours of birth). NEONATAL MANAGEMENT: Encourage early breastfeeding (breast milk contains glucose) or initiate frequent feeds with formula (every 1–2 hours initially). Check blood glucose levels in the first hour of life and 2–4 hours thereafter if risk factors exist (many protocols screen all infants of GDM mothers). If glucose drops below 40–45 mg/dL, IV dextrose or glucagon may be needed. After delivery, maternal GDM usually resolves, but women who experienced GDM have a 50–60% lifelong risk of developing type-2 diabetes mellitus. POSTPARTUM MATERNAL SCREENING: A fasting blood glucose or 2-hour OGTT should be performed at 6–12 weeks postpartum to rule out overt diabetes. If normal, rescreening is recommended every 1–3 years. Educate the woman on maintaining a healthy weight, regular exercise, and dietary modification to reduce type-2 diabetes risk. Children of GDM mothers also have increased obesity and type-2 diabetes risk, making family-level prevention counseling important.
Hyperemesis Gravidarum: Pathophysiology, Clinical Features, and Management
Importance
Hyperemesis gravidarum is the most common reason for hospitalization in the first trimester and can lead to serious complications (Wernicke encephalopathy, hepatic dysfunction) if untreated. The NLE tests recognition of the condition and management principles, particularly the importance of thiamine supplementation to prevent central nervous system damage.
Hyperemesis gravidarum is severe, persistent nausea and vomiting beyond ordinary "morning sickness," occurring typically in the first trimester (peak 6–12 weeks) and sometimes persisting throughout pregnancy. It is associated with high levels of human chorionic gonadotropin (hCG) and is more common in molar pregnancy and multiple gestation. PATHOPHYSIOLOGY: The exact cause is not fully understood, but elevated hCG, elevated estrogen, slower gastric emptying, psychological stress, and helicobacter pylori infection have been implicated. CLINICAL FEATURES: Persistent nausea and vomiting leading to inability to maintain oral nutrition and fluid intake. Women typically present with: (1) Dehydration signs—dry mucous membranes, poor skin turgor, tachycardia, hypotension, concentrated urine (specific gravity >1.025), reduced urine output; (2) Weight loss exceeding 5% of pre-pregnancy weight; (3) Ketonuria (from starvation metabolism); (4) Electrolyte disturbances—most commonly hypokalemia and hypochloremia (loss of gastric acid causes metabolic alkalosis) or, with prolonged starvation, metabolic acidosis with ketosis. DIAGNOSIS: Clinical presentation plus urinalysis showing ketonuria and absence of other causes (appendicitis, gastroenteritis, thyroiditis, etc.).
Hyperemesis Gravidarum Management: Fluids, Electrolytes, Antiemetics, and Nutritional Support
Importance
Hyperemesis gravidarum management balances aggressive rehydration and electrolyte correction with cautious antiemetic therapy, emphasizing the critical importance of thiamine to prevent neurological damage. The NLE tests whether students recognize that this is not merely "bad morning sickness" but a serious medical condition requiring hospitalization and multidisciplinary care. In Philippine settings, many women present late with severe dehydration and electrolyte derangement, making early recognition and referral essential.
INITIAL MANAGEMENT: NPO (nothing by mouth) for 24–48 hours while IV fluids are administered to restore intravascular volume and correct electrolyte abnormalities. IV fluid choice: isotonic crystalloid (0.9% sodium chloride or lactated Ringer's solution) with potassium chloride added once urine output is confirmed (typically 20–40 mEq/L). CRITICAL: Thiamine (vitamin B1) should be administered IV or IM (100 mg daily) during initial rehydration. Thiamine supplementation prevents Wernicke encephalopathy—a serious neuropsychiatric complication from prolonged vomiting and starvation that manifests with confusion, ataxia, ophthalmoplegia, and potentially irreversible brain damage. ANTIEMETIC THERAPY: First-line agents are: (1) Pyridoxine (vitamin B6) 25–50 mg orally three times daily, often combined with doxylamine 10–25 mg at bedtime (this combination is FDA Category A and has strong evidence of safety); (2) Metoclopramide 10 mg IV/IM/oral three times daily (dopamine antagonist increases gastric motility); (3) Promethazine 12.5–25 mg IV/IM/oral every 4–6 hours (antihistamine with sedating effect); (4) Ondansetron 4–8 mg IV/oral every 6–8 hours (serotonin antagonist; some data suggest increased cleft palate risk, so used cautiously). NUTRITIONAL SUPPORT: Once nausea improves, advance diet slowly: start with small, frequent, dry, bland carbohydrate meals (crackers, toast, rice); separate solid food from fluids (drink fluids between meals, not with meals); avoid high-fat foods, strong odors, and triggers. Ginger supplements (1–2 g/day) and acupressure (P6 wristband) have modest evidence. SUPPORTIVE CARE: Provide a calm, quiet environment; minimize noxious stimuli; emotional support and reassurance (many women fear they are harming the fetus); involve family and mental health professionals if depression or anxiety is present.
NANDA Nursing Diagnoses and Care Planning for Hypertensive and Metabolic Disorders
Importance
The NLE tests nursing process application across all conditions. Students must move beyond memorizing facts to applying clinical reasoning through diagnosis formulation, intervention planning, and outcome evaluation. This reflects RA 9173's emphasis on nurses as independent practitioners capable of delivering holistic care.
Students must recognize and apply NANDA-I nursing diagnoses relevant to these conditions. For preeclampsia/eclampsia: (1) Risk for decreased cerebral tissue perfusion related to vasospasm and increased intracranial pressure; (2) Risk for seizures related to CNS irritability from hypertension and vasospasm; (3) Excess fluid volume related to sodium and water retention and increased capillary permeability; (4) Deficient knowledge regarding condition, medications, and warning signs; (5) Anxiety related to potential for seizures and maternal/fetal complications. For GDM: (1) Imbalanced nutrition: more than body requirements related to impaired glucose metabolism; (2) Knowledge deficit regarding diabetes management, insulin injection, blood glucose monitoring, and dietary control; (3) Risk for fetal injury related to maternal hyperglycemia and fetal macrosomia; (4) Anxiety related to risk for complications and neonatal hypoglycemia. For hyperemesis gravidarum: (1) Deficient fluid volume related to persistent vomiting and inability to maintain oral intake; (2) Imbalanced nutrition: less than body requirements related to nausea and vomiting; (3) Risk for injury (Wernicke encephalopathy) related to prolonged vomiting and thiamine depletion; (4) Anxiety related to severity of symptoms and concern for fetus. Each diagnosis should be linked to specific interventions, outcomes, and evaluation criteria aligned with Maslow's hierarchy (safety/physiological needs prioritized before psychological needs).
Important points
- Preeclampsia = Blood pressure ≥140/90 mmHg after 20 weeks + proteinuria (≥0.3 g/24 h) OR hypertension + one or more signs of end-organ involvement (thrombocytopenia <100,000/µL, elevated liver enzymes, impaired renal function, pulmonary edema, cerebral/visual symptoms)
- Severe features of preeclampsia begin at BP ≥160/110 mmHg OR with severe, persistent headache, visual disturbances, epigastric/right-upper-quadrant pain, hyperreflexia with clonus, oliguria <500 mL/24 h, pulmonary edema, or thrombocytopenia
- Eclampsia = Preeclampsia + generalized tonic-clonic seizures; seizures may occur before, during, or after labor; delivery is the ONLY definitive treatment
- HELLP syndrome = Hemolysis + Elevated Liver enzymes + Low Platelets; presents with right-upper-quadrant pain, nausea, malaise; carries high risk of DIC, hepatic rupture, abruption; AVOID palpating the liver
- Magnesium sulfate: loading 4–6 g IV over 15–30 min, maintenance 1–2 g/hr continuous infusion on a pump; therapeutic level 4–7 mEq/L
- Magnesium toxicity signs IN ORDER: (1) Loss of DTRs (earliest, around 8–10 mEq/L), (2) Respiratory depression (RR <12/min, around 10–12 mEq/L), (3) Oliguria (<30 mL/hr, drug accumulates), (4) Decreased LOC, hypotension, cardiac arrest
- Hold magnesium sulfate infusion immediately if: patellar reflex absent, respiratory rate <12/min, or urine output <30 mL/hr
- Antidote for magnesium toxicity: Calcium gluconate 1 g (10 mL of 10% solution) IV over ~3 minutes; keep at bedside always during magnesium infusion
- Monitor before and during EVERY magnesium sulfate dose: DTRs, respiratory rate, BP, urine output, LOC, fetal heart rate, serum magnesium level, serum creatinine
- Position preeclamptic women in LEFT LATERAL recumbent position to maximize placental perfusion; keep room quiet, dim, low-stimulation to prevent seizures (seizure precautions with padded rails, suction/oxygen at bedside)
- During eclamptic seizure: PRIORITY is airway and safety. Turn to LEFT SIDE immediately, do NOT restrain (increases injury risk), do NOT force anything into mouth, protect from injury, time the seizure. NEVER leave alone.
- Antihypertensives safe in pregnancy for severe HTN (≥160/110): Hydralazine 5–10 mg IV, Labetalol 20 mg IV escalating doses, Nifedipine 10–20 mg oral, Methyldopa oral for chronic control
- ABSOLUTELY CONTRAINDICATED in pregnancy: ACE inhibitors and ARBs (cause fetal renal damage, oligohydramnios, IUGR, fetal death); tested on almost every NLE antihypertension question
- Avoid routine IV fluid boluses and diuretics in preeclampsia: women are intravascularly volume-depleted despite clinical edema (paradoxical); aggressive fluids precipitate pulmonary edema
- GDM screening: 50-g glucose challenge test at 24–28 weeks; if 1-hour value ≥140 mg/dL (or ≥135 in some protocols), perform 3-hour 100-g OGTT; diagnose if ≥2 values elevated
- Glycemic targets in pregnancy (GDM): Fasting <95 mg/dL, 1-hour postprandial <140 mg/dL, 2-hour postprandial <120 mg/dL
- GDM management cornerstone: Medical nutrition therapy (40–45% carbs, complex sources) + regular exercise (150 min/week); insulin added if diet fails; insulin is safest glucose agent (does not cross placenta)
- Neonatal complications of GDM: Macrosomia (>4,000 g, shoulder dystocia risk), hypoglycemia (fetal hyperinsulinemia → continued insulin after cord clamped), respiratory distress syndrome (delayed surfactant), hyperbilirubinemia
- Neonatal hypoglycemia risk in GDM: occurs within 1–2 hours of birth; check glucose in first hour and 2–4 hours; initiate early/frequent feeding; IV dextrose if needed
- GDM postpartum: women have 50–60% lifetime risk of type-2 diabetes; perform fasting glucose or 2-hour OGTT at 6–12 weeks postpartum; rescreening every 1–3 years; counsel on weight, exercise, diet
- Hyperemesis gravidarum: severe nausea/vomiting + dehydration + weight loss >5% + ketonuria ± electrolyte imbalance (hypokalemia, metabolic alkalosis); peak 6–12 weeks; associated with high hCG
- Hyperemesis management: NPO initially, then slow advance to small frequent dry bland meals; IV isotonic fluids with K+ once urine output confirmed; ALWAYS give thiamine 100 mg IV/IM to prevent Wernicke encephalopathy
- Antiemetics for hyperemesis: First-line = Pyridoxine (B6) 25–50 mg TID ± Doxylamine 10–25 mg qhs (Category A); also Metoclopramide, Promethazine, Ondansetron
- Maternal risks of GDM: Preeclampsia, polyhydramnios, urinary/candidal infections, increased cesarean delivery
- Patient teaching for preeclampsia: Report danger signs (severe headache, visual changes, epigastric pain, sudden face/hand swelling, decreased urine output, decreased fetal movement), home BP monitoring, left-lateral rest, adequate protein/fluids (no sodium restriction or diuretics), attend all prenatal visits
- Patient teaching for GDM: Self blood-glucose monitoring technique, insulin injection and storage, consistent carb-controlled diet, regular activity, recognize hypo/hyperglycemia, postpartum screening need, lifelong type-2 diabetes risk
- Patient teaching for hyperemesis: Eat dry crackers before rising, small frequent low-fat meals, avoid triggers/strong odors, separate fluids from solids, ginger supplements, acupressure P6 wristband, emotional support available
Chapter objectives
- Differentiate between gestational hypertension, preeclampsia, eclampsia, chronic hypertension, and chronic hypertension with superimposed preeclampsia based on clinical presentation and diagnostic criteria
- Explain the pathophysiology of preeclampsia, including vasospasm, endothelial dysfunction, and generalized fluid shifts, and relate these mechanisms to clinical signs and laboratory findings
- Identify severe features of preeclampsia and HELLP syndrome, including warning signs that necessitate immediate intervention
- Demonstrate competence in magnesium sulfate therapy: loading and maintenance dosing, therapeutic serum levels (4–7 mEq/L), signs of toxicity (loss of DTRs, respiratory depression, oliguria), and administration of calcium gluconate as the antidote
- Monitor deep tendon reflexes, respiratory rate, blood pressure, urine output, and level of consciousness before and during magnesium sulfate infusion
- Implement seizure precautions and provide priority nursing care during an eclamptic seizure, emphasizing airway protection and maternal safety
- Apply appropriate antihypertensive therapy for severe hypertension in pregnancy, avoiding teratogenic agents (ACE inhibitors, ARBs)
- Assess, diagnose, and manage gestational diabetes mellitus using the 50-g glucose challenge test and 3-hour OGTT, ensuring glycemic targets are met through diet, exercise, and insulin therapy
- Educate patients and families on GDM risks, insulin administration, blood glucose self-monitoring, and postpartum screening for type-2 diabetes
- Recognize and manage hyperemesis gravidarum, including fluid and electrolyte replacement, antiemetic therapy (pyridoxine and doxylamine), and prevention of Wernicke encephalopathy
- Apply NANDA nursing diagnoses and construct individualized care plans addressing physiological, psychological, and educational needs across NCM levels (I, II, III, IV)
- Provide culturally sensitive, evidence-based patient and family teaching aligned with Philippine healthcare context and family-centered care principles
Concept relationships
Concept
Pathophysiology of preeclampsia (vasospasm, endothelial dysfunction)
Related concept
Clinical manifestations (hypertension, proteinuria, seizures, end-organ symptoms)
Relationship
Vasospasm directly causes reduced organ perfusion, producing clinical signs: hypertension (vessel constriction), proteinuria (glomerular damage), seizures (cerebral vasospasm), headache/visual disturbances (occipital lobe hyperperfusion), and epigastric pain (hepatic ischemia). Understanding the mechanism explains why all signs are interconnected and why magnesium sulfate (vasodilator) is therapeutic.
Concept
Intravascular volume depletion (fluid shifted to tissues)
Related concept
Nursing management: cautious fluid administration, left-lateral positioning, strict monitoring
Relationship
The paradox of preeclampsia—clinical edema despite intravascular hypovolemia—explains why aggressive IV fluid boluses and routine diuretics are contraindicated (worsen hypoperfusion, trigger pulmonary edema). Left-lateral positioning maximizes renal perfusion; careful IV administration with pump and strict output monitoring prevent fluid overload complications. This directly links pathophysiology to clinical care decisions.
Concept
Magnesium sulfate mechanism (CNS depressant, smooth muscle relaxation)
Related concept
Monitoring parameters (DTRs, respiratory rate, urine output) and toxicity signs
Relationship
Magnesium's CNS depression and smooth-muscle effects create a dose-dependent spectrum of toxicity: DTRs disappear (CNS depression), then respiratory drive decreases (brainstem depression), then oliguria (renal effects and accumulation). Monitoring DTRs and RR is not arbitrary but reflects pathophysiology; absence of these signs precedes respiratory failure. The antidote (calcium antagonist) reverses the magnesium effects.
Concept
Fetal hyperinsulinemia from maternal GDM hyperglycemia
Related concept
Neonatal hypoglycemia, macrosomia, respiratory distress
Relationship
Maternal glucose crosses the placenta; fetal pancreas responds by increasing insulin production. Insulin acts as a growth factor (macrosomia), delays surfactant maturation (respiratory distress), and, after birth when maternal glucose is cut off, causes rapid hypoglycemia. Tight glycemic control in pregnancy prevents this cascade, making intensive GDM management essential.
Concept
Gestational diabetes risk factors (obesity, family history, age, previous macrosomic infant)
Related concept
Postpartum type-2 diabetes risk
Relationship
GDM is a manifestation of underlying insulin resistance; women with GDM have genetic and metabolic predisposition to diabetes. The 50–60% lifetime type-2 diabetes risk reflects this continuity. Identifying GDM early and intervening with diet/exercise reduces later diabetes risk, making postpartum screening and long-term surveillance essential components of care.
Concept
Hyperemesis gravidarum pathophysiology (prolonged vomiting, starvation, thiamine depletion)
Related concept
Risk for Wernicke encephalopathy and electrolyte imbalance
Relationship
Prolonged vomiting depletes thiamine (vitamin B1), which is essential for carbohydrate metabolism in the central nervous system. Without IV thiamine supplementation during rehydration, the woman risks irreversible Wernicke encephalopathy (confusion, ataxia, ophthalmoplegia). Similarly, loss of gastric acid causes metabolic alkalosis; loss of potassium causes hypokalemia. Recognizing these connections ensures comprehensive management, not just treating nausea.
Concept
Left-lateral recumbent positioning in preeclampsia
Related concept
Placental perfusion, fetal well-being, reduced seizure risk
Relationship
Left-lateral positioning is not a comfort measure but a therapeutic intervention: it maximizes uterine blood flow (>20% increase vs. supine), improves renal perfusion and urine output, reduces intracranial pressure, and decreases CNS irritability. This position supports all maternal systems threatened by preeclampsia while maintaining fetal perfusion—a simple yet powerful nursing intervention rooted in pathophysiology.
Concept
Seizure precautions (padded rails, suction, oxygen at bedside, quiet room)
Related concept
Prevention of eclamptic seizures and safety during seizure
Relationship
Vasospasm and endothelial dysfunction lower the seizure threshold; sensory stimulation (light, noise, touch) can trigger seizures. Reducing stimuli (quiet, dim room) prevents seizures; seizure precautions (padded rails, equipment at bedside) ensure safety if a seizure occurs. The focus is both prevention and rapid response, reflecting the urgency of eclampsia.
Concept
NANDA nursing diagnoses (e.g., Risk for decreased cerebral tissue perfusion, Risk for seizures)
Related concept
Specific nursing interventions and outcome evaluation
Relationship
Each diagnosis drives specific interventions: 'Risk for decreased cerebral tissue perfusion' → left-lateral positioning, reduced stimuli, careful BP/perfusion monitoring. 'Risk for seizures' → seizure precautions, magnesium administration, avoidance of triggers. 'Deficient knowledge' → patient education on warning signs, medication adherence, when to seek care. Nursing diagnoses create the bridge from assessment findings to individualized care planning aligned with Maslow's hierarchy.
Concept
Maternal hypertensive crisis (BP ≥160/110, severe symptoms) requiring antihypertensive therapy
Related concept
Selection of safe antihypertensive agents in pregnancy vs. teratogenic agents
Relationship
Severe hypertension increases maternal stroke, MI, renal failure risk; however, aggressive BP lowering can reduce placental perfusion and harm the fetus. The balance is achieved using agents safe in pregnancy (hydralazine, labetalol, nifedipine, methyldopa) that effectively lower BP without crossing the placenta or causing fetal harm. Absolute contraindication of ACE inhibitors/ARBs reflects their known teratogenic effects, making drug selection critical to dual maternal-fetal benefit.
Concept
Early recognition of preeclampsia/eclampsia in resource-limited Philippine settings
Related concept
Appropriate level of care, referral pathways, and accessible interventions
Relationship
Many Philippine health facilities lack advanced laboratory capacity; nurses must rely on clinical assessment (BP, DTRs, symptoms) to recognize preeclampsia and decide referral. Understanding that seizure prophylaxis can be guided by clinical monitoring (DTRs, RR) rather than serum magnesium levels ensures that even facilities with limited laboratory access can provide safe magnesium therapy. This connects clinical knowledge to healthcare delivery reality and RA 9173 scope of practice across NCM levels.
Practical applications
A 28-year-old primigravida at 32 weeks presents to the barangay health center with BP 168/112 mmHg, severe headache, and right-upper-quadrant pain. Urine dipstick shows 3+ proteinuria. The nearest tertiary hospital is 45 minutes away.
Application
DIAGNOSIS: Risk for seizures related to severe preeclampsia (vasospasm, CNS irritability). IMMEDIATE ACTIONS: (1) Notify the attending physician stat; (2) Call for emergency transport to tertiary hospital; (3) While awaiting transport, position woman in LEFT LATERAL position, keep room quiet and dim, establish IV access, have seizure precautions in place (padded rails, suction, oxygen); (4) If facility protocol allows and physician orders: initiate magnesium sulfate loading dose (4–6 g IV over 15–30 min); (5) Monitor BP, DTRs, respiratory rate, urine output, fetal heart rate closely; (6) If seizure occurs: turn to left side, do NOT restrain, protect from injury, suction after seizure, notify physician, prepare for emergency referral/delivery. This scenario illustrates the NCM III level competency of recognizing obstetric emergencies and initiating appropriate referral and immediate stabilization—critical in the Philippine context where many women first present in primary care facilities.
Clinical question
What is the priority nursing diagnosis and immediate action?
A 34-year-old multigravida is on magnesium sulfate infusion (1 g/hr IV) for preeclampsia with severe features. The nurse assesses before the hourly check and finds the patellar reflex is absent (previously brisk), respiratory rate is 14/min, urine output this hour was 20 mL, and the woman is increasingly somnolent.
Application
INTERPRETATION: Absent DTR is the EARLIEST sign of magnesium toxicity (serum level likely >8 mEq/L). While RR is still 14/min (>12), oliguria (<30 mL/hr) and altered mental status are additional red flags. ACTION: (1) HOLD the magnesium infusion immediately; (2) Assess respiratory rate, BP, oxygen saturation, and level of consciousness carefully; (3) Keep suction and oxygen at bedside ready; (4) Notify the attending physician immediately; (5) Recheck serum magnesium level STAT; (6) Assess urine output and renal function; (7) Have calcium gluconate 1 g (10 mL of 10%) ready at the bedside; if physician orders it, administer slowly IV over ~3 minutes; (8) Continue close monitoring; (9) Modify documentation and notify all team members of magnesium status; (10) Educate the patient and family on why the infusion is held—emphasize this is a safety precaution, not a sign of panic. This scenario tests the critical nursing skill of recognizing magnesium toxicity EARLY (at DTR loss, before respiratory arrest) and acting decisively. In Philippine practice, where serum magnesium levels may take hours to process, nurses must rely on clinical assessment to prevent harm.
Clinical question
Interpret these findings and describe the correct nursing response.
A 26-year-old pregnant woman at 28 weeks presents to the community health center with persistent severe nausea and vomiting for 3 weeks. She has lost 8 lbs (4% of pre-pregnancy weight), has dry mucous membranes, poor skin turgor, and concentrated urine. Urine dip shows 2+ ketonuria. She is anxious and afraid she is harming the fetus.
Application
ASSESSMENT: (1) History: onset, frequency/severity of vomiting, dietary intake, triggers, weight loss trajectory; (2) Signs of dehydration: vital signs (tachycardia, hypotension), mucous membranes, skin turgor, urine specific gravity, output; (3) Labs: electrolytes (potassium, sodium, chloride), acid-base status (alkalosis from gastric acid loss), creatinine, blood glucose, liver enzymes; (4) Psychological: impact on daily function, coping, depression/anxiety screening; (5) Fetal: ultrasound to assess well-being, growth, amniotic fluid. NURSING DIAGNOSIS: Deficient fluid volume related to persistent vomiting; Imbalanced nutrition: less than body requirements; Risk for injury (Wernicke encephalopathy) from prolonged vomiting and thiamine depletion; Anxiety. INITIAL MANAGEMENT: (1) If severe dehydration, refer to hospital for IV rehydration; (2) NPO initially (24–48 hrs), then slow advance; (3) IV isotonic crystalloid (0.9% NS or LR) with potassium chloride once urine output confirmed; (4) CRITICAL: Thiamine 100 mg IV or IM daily (prevents Wernicke); (5) Antiemetics: Pyridoxine (B6) 25–50 mg TID ± Doxylamine 10–25 mg qhs (first-line, Category A); consider Metoclopramide or Promethazine if inadequate response; (6) Monitor daily weight, intake/output, lab values; (7) Once nausea improves, advance to small frequent bland meals, separate fluids from solids; (8) Emotional support: normalize the condition, reassure about fetal safety, involve family, mental health referral if depression present; (9) Educate on triggers, ginger supplements, acupressure, eating dry crackers before rising. This scenario emphasizes the importance of recognizing hyperemesis as a serious condition (not just bad morning sickness), the CRITICAL role of thiamine supplementation, and the multidisciplinary approach combining medical, nutritional, and psychological support—aligned with NCM II-III comprehensive care principles.
Clinical question
Describe the nursing assessment, diagnosis, and initial management plan.
A 31-year-old primigravida with GDM diagnosed at 26 weeks has just received her first insulin injection (NPH 10 units before breakfast). She is anxious about insulin use and asks if it will harm the baby. Her fasting blood glucose this morning was 98 mg/dL; her 2-hour postprandial yesterday was 135 mg/dL. She reports eating white bread, processed meats, and sugary drinks.
Application
GLYCEMIC CONTROL ASSESSMENT: (1) Fasting 98 mg/dL is ABOVE target (<95 mg/dL), though not severely elevated; (2) 2-hour postprandial 135 mg/dL is ABOVE target (<120 mg/dL); (3) Dietary intake is HIGH glycemic load—requires education. ADDRESSING CONCERNS: (1) Reassure that insulin does NOT cross the placenta, so baby is not exposed to the medication; (2) Explain that insulin is the SAFEST glucose-lowering agent in pregnancy and has decades of safety data; (3) Emphasize that tight glucose control (insulin + diet) prevents macrosomia, neonatal hypoglycemia, and respiratory distress—benefits baby; (4) Normalize the anxiety; offer peer support groups if available. TEACHING PLAN: (1) Insulin injection technique: proper site rotation (abdomen, thighs, arms), sterile technique, timing relative to meals, storage (refrigerate unopened, room temp once opened); (2) Hypoglycemia recognition (tremor, sweating, palpitations, confusion) and treatment (15 g fast-acting carb: fruit juice, glucose tablets); (3) Hyperglycemia recognition (thirst, frequent urination, blurred vision, nausea) and actions (notify provider); (4) DIETARY MODIFICATION: (a) carbohydrates 40–45% of total calories, complex sources (whole grains, legumes, vegetables); (b) avoid white bread (switch to whole wheat), processed meats (high saturated fat), sugary drinks (switch to water); (c) consistent meal timing to match insulin doses; (d) include protein at each meal (slows glucose absorption); (5) Blood glucose self-monitoring: check fasting and 1–2 hours after each meal using glucometer; keep log; (6) Activity: light-to-moderate exercise 3–4 days/week aids insulin sensitivity; (7) Follow-up: weekly visits or telephone check-ins to assess glucose log, adjust insulin as needed, reinforce teaching. This scenario integrates pharmacology, nutritional science, behavioral change, and patient education—core competencies for GDM management at the NCM II-III level in Philippine community and primary care settings.
Clinical question
Assess her glycemic control, address her concerns, and develop a teaching plan.
A 24-year-old multiparous woman at 33 weeks with preeclampsia (BP 142/95, 2+ proteinuria) is recovering from an eclamptic seizure 2 hours ago. She is now alert, stable on magnesium sulfate maintenance (1 g/hr), and very anxious about having another seizure. Her family is concerned about fetal well-being and asking if the baby will have problems from the seizure.
Application
POST-SEIZURE NURSING CARE: (1) Continue close monitoring of vital signs, neurological status, DTRs, RR, urine output, and magnesium infusion safety; (2) Assess for any injuries from seizure (aspiration, tongue bites, contusions); (3) Provide comfort measures (quiet room, dim lighting, calm environment); (4) Perform fetal monitoring: check FHR baseline, variability, accelerations; assess for signs of abruption (vaginal bleeding, pain, tetanic contractions); (5) Document seizure characteristics, recovery, and all interventions. SEIZURE PREVENTION: (1) Maintain magnesium sulfate therapeutic level (therapeutic level 4–7 mEq/L; continue infusion per protocol); (2) Keep seizure precautions in place (padded rails up, suction/oxygen at bedside, emergency equipment available); (3) Minimize stimuli: keep room quiet, dim, low-traffic (even loud talking can trigger seizures); (4) Limit visitors; inform family that quiet, calm interaction is therapeutic; (5) Avoid abrupt movements or startling; approach gently; (6) Monitor for warning signs of another seizure (severe headache escalation, visual changes, jaw clenching) and alert provider immediately if present. FAMILY EDUCATION: (1) Explain eclampsia is a serious but treatable condition; seizure occurred because of vasospasm (narrowing of brain vessels) from preeclampsia, not because of fetal problems; (2) Reassure that seizure itself is not damaging to baby if FHR remains reassuring; (3) Emphasize that delivery is the definitive treatment for eclampsia and will prevent further seizures; (4) Prepare family for likely delivery within 24–72 hours (depending on maternal and fetal condition, gestational age); (5) Discuss potential for neonatal magnesium effects (hypotonia, poor feeding initially) and reassure this is temporary; (6) Encourage family support, quiet presence, and realistic hope; (7) Provide written information about preeclampsia/eclampsia in Tagalog or native language if available. This scenario integrates acute crisis management, ongoing safety vigilance, fetal-maternal monitoring, and family-centered communication—essential for NCM IV (tertiary care) nursing in obstetric emergencies.
Clinical question
Describe post-seizure nursing care, seizure prevention, and family education.
A mother delivers vaginally 2 hours ago; baby born to a GDM mother has a 1-minute Apgar of 8 and 5-minute Apgar of 9. The mother is recovering well. The neonate has been held for skin-to-skin contact and feeding has not yet occurred. A nurse is about to perform routine newborn blood glucose screening.
Application
IMPORTANCE OF SCREENING: Infants of GDM mothers have elevated risk of neonatal hypoglycemia because fetal pancreas has been stimulated by maternal hyperglycemia to overproduce insulin. After delivery, when maternal glucose supply is cut off via umbilical cord, the infant's own hyperinsulinemia causes rapid glucose drop (usually within 1–2 hours of birth). Undetected hypoglycemia can lead to seizures, brain damage, death. Screening prevents these catastrophic outcomes. SCREENING PROCEDURE: (1) Check blood glucose at 1 hour of life and 2–4 hours thereafter if at-risk; (2) Use heel stick with glucometer (follow facility protocol for equipment and technique); (3) Document result; (4) Normal range typically 40–50 mg/dL or higher (depends on lab; confirm facility standards). IMMEDIATE ACTIONS BASED ON RESULTS: (1) If glucose 40–50 mg/dL or ABOVE: Continue frequent monitoring (every 2–4 hours for 24 hours); initiate early/frequent feeding (encourage breastfeeding NOW if not done, or offer formula); reassure mother and family. (2) If glucose BELOW 40 mg/dL (or facility threshold): This is neonatal hypoglycemia. ACTION: (a) Feed immediately—encourage breastfeeding or give formula (15–30 mL per feed); (b) Recheck glucose 15–30 min after feeding; (c) If glucose still low or baby unable to feed (poor suck, lethargy), notify provider for consideration of IV dextrose; (d) Continue frequent feedings and rechecking; (e) Monitor for hypoglycemia signs: tremor, jitteriness, poor feeding, lethargy, seizures; (f) Educate mother: explain this is expected in GDM infants, emphasize importance of frequent feeding, reassure outcome is usually excellent with early intervention. MATERNAL FOLLOW-UP: Remind mother of postpartum glucose screening at 6–12 weeks (fasting glucose or 2-hour OGTT) to detect persistent diabetes; counsel on long-term type-2 diabetes risk and preventive lifestyle measures. This scenario bridges pregnancy GDM management to neonatal care and postpartum surveillance—a complete continuum of care reflecting comprehensive nursing practice at NCM III level.
Clinical question
Explain why this screening is important, how it should be done, and what immediate actions are needed based on results.
A clinic nurse in a provincial health center is conducting routine prenatal care on a 25-year-old at 26 weeks. This is her second pregnancy. First pregnancy ended in stillbirth at 34 weeks; cause was attributed to unrecognized preeclampsia. Today's BP is 138/88 mmHg (baseline was 120/80 at first visit), weight gain is 4 lbs this month (vs. usual 0.5–1 lb/week), and urinalysis shows 1+ protein.
Application
RISK ASSESSMENT: (1) History of previous adverse pregnancy outcome (stillbirth) increases preeclampsia recurrence risk significantly; (2) Current BP trending upward (138/88 from baseline 120/80) is concerning—not yet meeting diagnostic criteria but concerning trajectory; (3) Recent weight gain suggests fluid retention (edema); (4) Proteinuria (1+) with elevated BP and weight gain are classic triad of early preeclampsia; (5) Must rule out preeclampsia vs. normal pregnancy changes. ASSESSMENT ACTIONS: (1) Repeat BP in both arms, sitting and standing; (2) Check for edema (face, hands, sacrum, ankles); (3) Check reflexes and clonus; (4) Quantify proteinuria: collect 24-hour urine or spot urine protein/creatinine ratio; (5) Labs: CBC (platelets, hematocrit), liver enzymes, creatinine, uric acid; (6) Assess for symptoms: headache, visual changes, epigastric pain, right-upper-quadrant pain, decreased urine output; (7) Fetal assessment: ultrasound for growth, amniotic fluid, umbilical artery Doppler if indicated; (8) Baseline fetal heart rate monitoring. DIAGNOSIS & MANAGEMENT: If preeclampsia confirmed (BP ≥140/90 + proteinuria or end-organ signs): Refer to tertiary center for management; consider magnesium sulfate initiation depending on severity and gestational age; plan for delivery timing. If suspected but not yet confirmed: Close follow-up (1–2 times weekly), careful monitoring, educate on danger signs, prepare for likely transfer. PATIENT EDUCATION: (1) Explain the concern: rising BP and protein in urine are signs of preeclampsia, a serious condition that requires careful watch to protect her and baby; (2) Validate her anxiety about previous loss; reassure that with early detection and close monitoring, most mothers and babies do well; (3) Teach danger signs: severe headache unresponsive to medication, visual changes (blurring, flashing lights), epigastric or right-upper-quadrant pain, sudden face/hand swelling, decreased urination, decreased fetal movement, vaginal bleeding—call/report immediately; (4) Emphasize importance of keeping all appointments (do not skip visits); (5) Encourage left-lateral rest for 30 min daily; adequate protein and fluid (no salt restriction or diuretics); (6) Teach fetal kick counting: count movements daily; notify provider if <10 kicks in 2 hours; (7) Home BP monitoring if available (use same device, same arm, same time each morning); (8) Emotional support: refer to counselor if grief about previous loss or anxiety interferes with coping; offer peer support groups. FOLLOW-UP PLAN: (1) Schedule visit in 1 week (vs. routine 4-week interval); (2) If worsening, transfer immediately to tertiary center; (3) If stable, continue close surveillance until delivery or resolution of findings; (4) Plan for early delivery (37 weeks or sooner if severe features develop). This scenario illustrates HIGH-RISK pregnancy management at the primary/secondary care level, emphasizing early recognition, appropriate referral, patient-centered education, and emotional support—core competencies for nurses in the Philippine healthcare system, particularly in provincial settings where risk stratification and timely referral prevent maternal death.
Clinical question
Assess this woman's risk, provide appropriate counseling and monitoring, and describe any teaching needs.
Diagrams
Hypertensive Disorders of Pregnancy: Classification, Features, and Management
This mind map provides a comprehensive overview of hypertensive disorders in pregnancy, showing the classification spectrum (from gestational hypertension to eclampsia), key assessment parameters, and management strategies. It visually demonstrates how disorders range in severity and complexity, and how each requires different monitoring and intervention intensity.
Magnesium Sulfate Administration and Safety Protocol
This flowchart illustrates the complete protocol for safe magnesium sulfate administration in preeclampsia/eclampsia, from initial assessment through ongoing monitoring and toxicity management. It emphasizes the critical decision points (hourly assessment of DTRs, respiratory rate, urine output) and the escalation pathway if toxicity signs emerge. The flowchart reinforces that this is a continuous, structured process requiring vigilant monitoring at every step.
Eclamptic Seizure: Immediate Nursing Response Sequence
This sequence diagram maps the exact sequence of nursing actions during an eclamptic seizure, emphasizing the priority of airway protection and safety FIRST, followed by maternal assessment, then fetal assessment and team notification. The visual sequence clarifies that certain interventions (turning to left side, protecting from injury) happen DURING the seizure, while others (notification, delivery preparation) happen immediately after. This reinforces the NLE emphasis on correct prioritization of actions in obstetric emergencies.
GDM Screening, Diagnosis, and Management Pathway
This comprehensive flowchart traces the complete GDM pathway from initial screening through postpartum follow-up, showing the two-step diagnostic process, the decision points for diet vs. insulin therapy, and the critical postpartum surveillance component. It emphasizes the specific glycemic targets and the escalation to insulin when diet alone fails—key NLE testing points about GDM management.
Preeclampsia Severity Progression and Clinical Transitions
This state diagram illustrates how preeclampsia can progress from gestational hypertension through various stages, emphasizing that the disorder is dynamic and may evolve rapidly. It shows that eclampsia and HELLP can develop from either preeclampsia or severe preeclampsia, and that delivery is the endpoint for all severe forms. The diagram helps students understand that early recognition and close monitoring aim to prevent progression to these severe states.
Gestational Diabetes Mellitus: Glycemic Control Achievement Rates
This pie chart illustrates that the vast majority of GDM cases (approximately 85%) can be managed successfully with medical nutrition therapy and exercise alone, while only 15% require insulin therapy. This visual emphasizes the importance of intensive dietary counseling as first-line management and sets realistic expectations for both patients and healthcare providers. It also underscores why insulin, when needed, should be promptly initiated rather than delayed—the 15% who need it represent cases where diet has demonstrably failed.
Magnesium Toxicity Progression: Timeline of Clinical Manifestations
This timeline visually represents the progressive stages of magnesium toxicity as serum levels rise, correlating specific clinical manifestations with approximate serum concentrations. It emphasizes the EARLY recognition principle—that loss of deep tendon reflexes appears first and is the signal to HOLD the infusion before respiratory depression or cardiac complications develop. This reinforces the critical NLE teaching point that nurses must recognize toxicity at its earliest stage through meticulous clinical monitoring.
Neonatal Hypoglycemia Screening and Management in GDM Infants
This detailed flowchart outlines the complete protocol for screening, monitoring, and managing neonatal hypoglycemia in infants born to GDM mothers. It shows the critical importance of early screening (within 1 hour of birth) and the escalating responses based on blood glucose levels. The pathway emphasizes early feeding as the first intervention, with IV dextrose reserved for cases where the infant cannot feed effectively. It also reassures that neonatal hypoglycemia from GDM typically resolves within 24-48 hours as fetal hyperinsulinemia wanes—important information for family education.
In summary
Hypertensive and metabolic disorders of pregnancy represent a complex interplay of pathophysiological changes, clinical manifestations, and therapeutic interventions that demands rapid assessment, precise pharmacological management, and vigilant monitoring from nurses across all levels of the Philippine healthcare system. The study of preeclampsia, eclampsia, HELLP syndrome, gestational diabetes mellitus, and hyperemesis gravidarum equips nurses with the knowledge to recognize these life-threatening conditions early, administer high-alert medications safely (particularly magnesium sulfate with its narrow therapeutic margin), and prevent catastrophic maternal and fetal complications. Magnesium sulfate therapy exemplifies the high-stakes nature of obstetric nursing: understanding the exact loading dose (4–6 g IV over 15–30 min), maintenance regimen (1–2 g/hr), therapeutic serum level (4–7 mEq/L), the EARLIEST sign of toxicity (loss of deep tendon reflexes—NOT respiratory depression), and the rapid antidote (calcium gluconate 1 g IV over 3 minutes) represents the difference between maternal survival and respiratory arrest. The nurse's role in left-lateral positioning, seizure precautions, strict monitoring of deep tendon reflexes and respiratory rate before every magnesium dose, and immediate response to warning signs embodies the critical competencies tested on the Philippine Nursing Licensure Examination. Beyond medication administration, this chapter underscores the nurse's responsibility in comprehensive patient and family education—explaining that gestational diabetes usually resolves after delivery but carries lifelong type-2 diabetes risk, teaching neonatal hypoglycemia prevention through early feeding, reassuring the preeclamptic mother about seizure precautions and delivery plans, and supporting the hyperemetic pregnant woman with dignity and emotional validation. These disorders also reflect health equity and healthcare access issues relevant to the Philippine context: many women present late to primary care with severe preeclampsia or eclampsia because of geographic remoteness, limited resources, or poor health literacy. The NLE expects nurses to function effectively across all NCM levels (from community health workers in barangay health stations recognizing warning signs and coordinating referral, to tertiary care nurses managing intensive magnesium therapy and eclamptic emergencies) while maintaining cultural sensitivity, adhering to RA 9173 scope of practice, and advocating for evidence-based care in resource-limited settings. The integration of pathophysiology, pharmacology, nursing process (assessment, diagnosis, intervention, evaluation), NANDA taxonomy, and Maslow's hierarchy of needs creates a comprehensive framework that prepares Filipino BSN graduates to provide safe, effective, compassionate care to vulnerable pregnant women and their families, ultimately reducing maternal mortality and morbidity in the Philippines.
Next steps
To consolidate your mastery of this chapter and prepare for the NLE, undertake the following focused study activities: (1) PRACTICE PROBLEMS: Solve a minimum of 20–30 scenario-based questions on preeclampsia management, magnesium sulfate toxicity recognition, GDM diagnosis and insulin therapy, and hyperemesis management; focus on questions that require you to calculate magnesium loading doses, interpret serum levels, apply nursing diagnoses, and prioritize interventions using Maslow's framework. (2) CLINICAL DRILL: If possible, observe or perform supervised practice with pregnant women with these conditions in a hospital labor/delivery unit or outpatient prenatal clinic; practice assessing deep tendon reflexes, understanding preeclampsia symptoms, and discussing GDM lifestyle modifications with actual patients. (3) SIMULATION PRACTICE: Participate in high-fidelity obstetric simulations of eclamptic seizures, magnesium toxicity, and eclampsia management to develop muscle memory for turning to the left side, positioning for airway protection, and the rapid response to patient deterioration. (4) PHARMACOLOGY REVIEW: Create flashcards or a medication reference card for magnesium sulfate, antihypertensives, insulin, and antiemetics—include loading/maintenance doses, therapeutic ranges, toxicity signs, monitoring parameters, and antidotes; refer to this regularly until you can recite information automatically. (5) CASE STUDY ANALYSIS: Select 2–3 published case studies of preeclampsia, eclampsia, or GDM complications; analyze using the nursing process, identify NANDA diagnoses, critique the management plan, and discuss alternative approaches—this deepens clinical reasoning. (6) FAMILY TEACHING DEVELOPMENT: Write patient-education handouts (in English and Tagalog if possible) on GDM insulin self-injection, preeclampsia warning signs, and neonatal hypoglycemia prevention; use plain language appropriate for different literacy levels found in the Philippine population. (7) MULTIDISCIPLINARY COLLABORATION: Understand the roles of obstetric physicians, anesthesiologists, pediatricians, dietitians, and mental health professionals in managing these conditions; this prepares you for real-world teamwork. (8) REVIEW PHILIPPINE PROTOCOLS: Obtain and study the Maternal Mortality and Morbidity Protocol and Preeclampsia Management Guidelines from Philippine Society of Obstetrics and Gynecology (PSOG) or DepED to align your knowledge with national standards of care. (9) PRIORITIZATION DRILLS: Practice NCLEX-style questions requiring you to prioritize nursing actions in multi-patient scenarios (e.g., a preeclamptic woman with new seizure activity vs. a GDM mother with hypoglycemic infant)—use Maslow to guide your ranking. (10) FINAL REVIEW: One week before the NLE, do a rapid review of this chapter's HIGH-YIELD POINTS (magnesium dosing, toxicity signs, eclampsia management, GDM targets, hyperemesis thiamine), focusing on the exact numbers and sequences that the exam emphasizes. After passing the NLE, maintain competency through continuing education, attending maternal-fetal medicine updates, and staying engaged with clinical practice in obstetrics—these disorders demand lifelong learning to keep mothers and babies safe.