Midwife Licensure Exam Newborn & Neonatal Care — High-Risk Newborn & Neonatal DisordersDetailed Explanation

Prematurity and Low Birth Weight (LBW)

A preterm infant is born before 37 completed weeks of gestation. This is a critical distinction from low birth weight (LBW), which is defined purely by weight regardless of gestational age. The earlier the birth, the more immature every organ system is, and the greater the nursing challenge. Weight classifications you must memorize: • Low Birth Weight (LBW): below 2,500 grams • Very Low Birth Weight (VLBW): below 1,500 grams • Extremely Low Birth Weight (ELBW): below 1,000 grams Preterm infants have immature organ systems that affect every body system. Think of the neonate as a person who was 'born too soon' — the lungs lack surfactant, the skin is thin with minimal subcutaneous fat, the brain's blood vessels are fragile, and the gut cannot yet handle full enteral feeds. Key system-by-system problems: 1. RESPIRATORY: Surfactant deficiency leads to respiratory distress syndrome (RDS). Periodic breathing (normal alternating breathing patterns) can progress to apnea — defined as cessation of breathing for more than 20 seconds, or any pause accompanied by bradycardia or cyanosis. 2. THERMOREGULATION: Preterm neonates have minimal brown fat (needed for non-shivering thermogenesis) and very little subcutaneous tissue. Their large body surface area relative to weight increases heat loss. Cold stress causes increased oxygen consumption, hypoglycemia, and metabolic acidosis. 3. FEEDING AND GI: The suck-swallow-breathe coordination is not mature until approximately 34 weeks. Before this, gavage (tube) feeding is used. The immature gut is at risk for necrotizing enterocolitis (NEC) — a serious inflammatory condition presenting as abdominal distension, bloody or bloody-tinged stools, feeding intolerance, and a 'shiny' abdomen. 4. NEUROLOGIC: The germinal matrix — a vascular area near the lateral ventricles — is fragile in preterm infants and can rupture under hemodynamic stress, causing intraventricular hemorrhage (IVH). Grade III–IV IVH can lead to hydrocephalus and long-term neurodevelopmental disability. 5. IMMUNE: Immature immune defenses (low IgG, decreased phagocytic activity) make preterm infants highly susceptible to bacterial and fungal infections. 6. EYES: Retinopathy of prematurity (ROP) results from abnormal retinal vessel growth in response to oxygen exposure. Nurses must titrate oxygen carefully and monitor saturations (target: 91–95% in most preterm infants) to prevent this. 7. HEPATIC: Immature liver function leads to impaired bilirubin conjugation (hyperbilirubinemia) and impaired glycogen synthesis and gluconeogenesis (hypoglycemia). Nursing Priorities for the Preterm Infant (Maslow-Based): 1. Airway/Breathing/Oxygenation (physiologic — survival priority) 2. Thermoregulation — neutral thermal environment via incubator, radiant warmer, hat, skin-to-skin/kangaroo care 3. Nutrition — gavage feeding or IV parenteral nutrition 4. Infection Prevention — strict hand hygiene, minimal invasive procedures 5. Neurodevelopmental Support — cluster care, minimal stimulation, developmental positioning 6. Family Bonding — kangaroo mother care (KMC), which is strongly promoted by the Philippine DOH

Respiratory Distress Syndrome (RDS)

Respiratory Distress Syndrome (RDS) — also called Hyaline Membrane Disease (HMD) — is the most common and clinically significant respiratory problem in preterm infants. It is caused by a deficiency of surfactant, the phospholipid-protein mixture produced by Type II alveolar cells (pneumocytes) that reduces surface tension in the alveoli. Without surfactant, the alveoli collapse at the end of each expiration (atelectasis), and the infant must work harder and harder to re-inflate them with every breath. This progressive collapse leads to hypoxemia, hypercapnia, and metabolic acidosis. Pathophysiology in simple terms: Think of surfactant like the soap coating inside a bubble — it keeps the alveoli open. Without it, the alveoli are like dry bubbles that collapse after each breath. The infant has to breathe harder and harder just to keep their alveoli open, eventually exhausting themselves. Surfactant production is adequate by approximately 34–35 weeks gestation. Risk factors for RDS include: • Prematurity (primary cause) • Maternal diabetes (insulin delays surfactant maturation) • Cesarean section without labor (labor contractions stimulate surfactant release) • Male sex • Second twin • Perinatal asphyxia Clinical Manifestations (appear within hours of birth — usually within 4–6 hours): The classic signs form the respiratory distress cluster: • TACHYPNEA: respiratory rate greater than 60 breaths per minute (normal neonatal RR is 30–60/min) • GRUNTING: the infant forcefully exhales against a partially closed glottis to maintain positive end-expiratory pressure and keep alveoli open — the hallmark sound of RDS • NASAL FLARING: widening of the nostrils to reduce airway resistance • RETRACTIONS: intercostal, subcostal, suprasternal, and/or sternal — indicate the use of accessory muscles • CYANOSIS: central cyanosis from hypoxemia • SEE-SAW (PARADOXICAL) BREATHING: the chest falls and the abdomen rises on inspiration due to diaphragmatic effort against stiff lungs Chest X-ray: Classic 'ground-glass' reticulogranular pattern with air bronchograms — the lungs look diffusely hazed like frosted glass. Management: 1. EXOGENOUS SURFACTANT REPLACEMENT: This is the cornerstone of RDS treatment. Surfactant is instilled directly into the endotracheal tube as a liquid suspension. Common preparations in Philippine clinical practice: • Beractant (Survanta) — bovine-derived • Poractant alfa (Curosurf) — porcine-derived • Calfactant (Infasurf) — calf-derived The effect is rapid — compliance improves within minutes to hours, and oxygen requirements decrease. 2. RESPIRATORY SUPPORT: • CPAP (Continuous Positive Airway Pressure): maintains positive pressure throughout the breathing cycle, preventing alveolar collapse. Preferred for less severe RDS. • Mechanical ventilation: for infants who cannot maintain adequate oxygenation/ventilation on CPAP. • High-frequency ventilation: for refractory cases. 3. OXYGEN THERAPY: titrate to maintain target saturations — avoid hyperoxia (risk of ROP and pulmonary oxygen toxicity). 4. ANTENATAL PREVENTION: Maternal corticosteroids — betamethasone (2 doses of 12 mg IM, 24 hours apart) or dexamethasone — given 24 hours to 7 days before anticipated preterm birth accelerate fetal lung maturity by stimulating surfactant production. This is a major NLE high-yield topic. 5. SUPPORTIVE CARE: maintain thermoregulation, provide IV fluids and nutrition, minimize handling, monitor blood gases and glucose. Related Conditions to Distinguish: • TRANSIENT TACHYPNEA OF THE NEWBORN (TTN): Retained fetal lung fluid after birth, most common after elective cesarean section (labor contractions help clear lung fluid). Presents as tachypnea within hours of birth, usually resolving within 24–72 hours. The chest X-ray shows perihilar streaking and fluid in the fissures — NOT the ground-glass pattern of RDS. Management is supportive (supplemental oxygen, monitoring). • MECONIUM ASPIRATION SYNDROME (MAS): Meconium (first stool) aspirated into the lungs, causing both mechanical obstruction (ball-valve effect) and chemical pneumonitis. Seen in post-term (>42 weeks) and stressed infants. Presents as severe respiratory distress with barrel-shaped chest. Management: suctioning, oxygen, possible intubation, surfactant for severe cases.

Hyperbilirubinemia and Neonatal Jaundice

Neonatal jaundice (icterus neonatorum) is the yellow discoloration of the skin, sclera, and mucous membranes caused by elevated bilirubin levels. It is the most common condition requiring evaluation in newborns — up to 60% of term and 80% of preterm infants develop visible jaundice in the first week. While most cases are physiologic and benign, some are pathologic and can lead to permanent brain damage (kernicterus). The nurse's ability to distinguish physiologic from pathologic jaundice and to act quickly is critical. Bilirubin Metabolism: Red blood cells are broken down → hemoglobin → heme → unconjugated (indirect) bilirubin (fat-soluble, not water-soluble, TOXIC to brain) → transported to liver → conjugated (direct) bilirubin (water-soluble, non-toxic) → excreted in bile → stool. The newborn's liver is immature and cannot conjugate bilirubin efficiently, AND the newborn has a higher RBC mass that breaks down faster — this combination causes bilirubin to accumulate. Visible Jaundice: Jaundice becomes clinically visible when the total serum bilirubin (TSB) reaches approximately 5 mg/dL. It progresses in a CEPHALOCAUDAL (head-to-toe) pattern: • Face: TSB ~5 mg/dL • Trunk: TSB ~10 mg/dL • Thighs: TSB ~12 mg/dL • Arms and lower legs: TSB ~15 mg/dL • Palms and soles: TSB ~20+ mg/dL (DANGER zone) This is a clinical estimate only — always confirm with serum bilirubin levels. Physiologic vs. Pathologic Jaundice — THE KEY DISTINCTION: PHYSIOLOGIC JAUNDICE: • Appears AFTER the first 24 hours of life (typically day 2–3) • Peaks around day 3–5 in term infants (day 5–7 in preterm) • Resolves within 7–10 days in term infants (may persist up to 2 weeks in preterm) • TSB rises gradually, not rapidly • Only unconjugated (indirect) bilirubin is elevated • No underlying disease PATHOLOGIC JAUNDICE: • Appears WITHIN the first 24 hours of life — THIS IS THE CARDINAL RULE • Rises rapidly (>0.5 mg/dL/hour or >5 mg/dL/day) • Persists beyond normal timeframes • Conjugated (direct) bilirubin >2 mg/dL OR >20% of total — always pathologic, suggests hepatic or biliary disease • May involve hemolysis (Rh or ABO incompatibility), sepsis, or other disease Key Rule for NLE: ANY JAUNDICE IN THE FIRST 24 HOURS IS PATHOLOGIC UNTIL PROVEN OTHERWISE. Special Types: • BREASTFEEDING JAUNDICE (Early onset): Days 2–4, caused by insufficient milk intake. The infant is not feeding enough, gets dehydrated, has decreased stool frequency, and bilirubin is not excreted. Solution: increase feeding frequency (8–12 times per day), assess latch and milk supply. • BREAST-MILK JAUNDICE (Late onset): Day 4 onward, peaks day 7–14, may persist up to 3 months. Caused by a factor in breast milk that inhibits bilirubin conjugation. Generally benign. Management: continue breastfeeding unless TSB is very high. • ABO INCOMPATIBILITY: Mother is Type O; infant is Type A, B, or AB. Mother's antibodies cross the placenta and hemolyze fetal RBCs. Jaundice appears in first 24 hours. Milder than Rh incompatibility. The Coombs test (direct antiglobulin test) is positive. • RH INCOMPATIBILITY (Erythroblastosis Fetalis): Rh-negative mother, Rh-positive infant. Severe hemolysis in subsequent pregnancies (first pregnancy rarely affected). Prevented by maternal Rho(D) immune globulin (RhoGAM) given at 28 weeks and within 72 hours after delivery. The Danger — Kernicterus: Unconjugated bilirubin is fat-soluble and can cross the BLOOD-BRAIN BARRIER, depositing in the basal ganglia, hippocampus, and brainstem nuclei. This causes KERNICTERUS (bilirubin encephalopathy). Early signs of acute bilirubin encephalopathy: lethargy, poor feeding, decreased activity, hypotonia Progression: hypertonia, backward arching (opisthotonus), high-pitched cry, seizures, fever Chronically: athetoid cerebral palsy, sensorineural hearing loss, upward gaze palsy, intellectual disability — permanent and irreversible Kernicterus risk rises as unconjugated bilirubin approaches 20–25 mg/dL in term infants — but MUCH LOWER thresholds apply to preterm, sick, or jaundiced infants. Treatment thresholds are read from the BHUTANI HOUR-SPECIFIC NOMOGRAM, not a single fixed number — the nomogram plots TSB against postnatal age in hours and identifies risk zones. Management: 1. PHOTOTHERAPY (First-line treatment): Blue-green light (wavelength 430–490 nm) converts unconjugated bilirubin in the skin into water-soluble isomers (lumirubin and photobilirubin) that can be excreted in urine and bile without conjugation. Nursing Care During Phototherapy — HIGH YIELD for NLE: • UNDRESS the infant maximally to expose maximum skin surface area • COVER THE EYES with opaque eye patches to prevent retinal damage — check every 4 hours for correct placement, skin integrity, and eye discharge • PROTECT THE GENITALS (especially male infants) with a small diaper • MAINTAIN HYDRATION: phototherapy increases insensible water loss; feed frequently (breastfeed every 2–3 hours); monitor urine output and specific gravity • MONITOR TEMPERATURE: phototherapy lights generate heat — monitor for hyperthermia and hypothermia • REPOSITION FREQUENTLY (every 2 hours) to expose all skin surfaces • TURN OFF THE LIGHTS when drawing serum bilirubin levels (light degrades bilirubin in the sample) • Expected side effects: loose, green stools (normal — bilirubin excretion); temporary bronze baby syndrome in infants with elevated conjugated bilirubin (harmless) • MONITOR SERUM BILIRUBIN every 4–12 hours during phototherapy 2. EXCHANGE TRANSFUSION: For severe hyperbilirubinemia not controlled by phototherapy, approaching the exchange threshold (approximately 20–25 mg/dL in term infants, lower in preterm). Double-volume exchange transfusion removes approximately 85% of circulating bilirubin and antibody-coated red cells. It is a procedure performed by the physician with nursing assistance. 3. OTHER MEASURES: • Feed frequently to increase stool frequency and promote bilirubin excretion • Treat the underlying cause (infection, hemolysis) • Rho(D) immune globulin (RhoGAM) to prevent Rh disease in future pregnancies

Neonatal Sepsis

Neonatal sepsis is a life-threatening systemic infection occurring in the first 28 days of life. It is particularly dangerous because the signs are SUBTLE and NONSPECIFIC — the classic signs of infection we see in older children and adults (high fever, localized redness, obvious source of infection) are often ABSENT in newborns. A newborn may simply 'not look right' or 'not be doing well,' and this clinical intuition must be translated into immediate action. Classification by Timing: 1. EARLY-ONSET SEPSIS (EOS): Within the first 72 hours of life (some sources say first 7 days) • Usually acquired vertically — from the mother during labor and delivery (ascending infection from the birth canal or direct contact during delivery) • Most common organisms: - GROUP B STREPTOCOCCUS (GBS, Streptococcus agalactiae) — the most common cause in developed settings and increasingly recognized in the Philippines - ESCHERICHIA COLI (E. coli) — the second most common gram-negative cause - Listeria monocytogenes (rare but deadly) • Risk factors: Prolonged rupture of membranes (>18 hours), maternal fever or chorioamnionitis (infection of the amniotic membranes), maternal GBS colonization, prematurity, low birth weight, invasive procedures during labor • Clinical presentation: respiratory distress, temperature instability, lethargy 2. LATE-ONSET SEPSIS (LOS): After 72 hours of life • Usually acquired horizontally — from the environment, caregivers, or equipment (nosocomial) • Common organisms: Coagulase-negative staphylococci (CoNS) — especially Staphylococcus epidermidis, Staphylococcus aureus, Klebsiella, Candida (especially in VLBW infants on prolonged antibiotics) • Risk factors: Central lines (umbilical catheter, PICC), prolonged ventilation, hospitalization, prematurity Clinical Manifestations of Neonatal Sepsis — Think 'Baby Just Not Doing Well': The classic teaching phrase for neonatal sepsis signs: 'A sick baby looks sick.' • TEMPERATURE INSTABILITY: Often HYPOTHERMIA (temperature <36.5°C) rather than FEVER in newborns, especially preterm infants. Hyperthermia can also occur but is less common. • POOR FEEDING: sudden refusal to feed or poor suck in a previously feeding well infant • LETHARGY or IRRITABILITY: decreased activity, weak cry, difficult to arouse, OR paradoxically excessive irritability • RESPIRATORY: tachypnea, apnea, or respiratory distress — new or worsening • CARDIOVASCULAR: tachycardia or bradycardia, poor perfusion (mottled skin, prolonged capillary refill >3 seconds, pallor) • NEUROLOGIC: hypotonia ('floppy'), seizures, bulging fontanel (meningitis) • METABOLIC: hypoglycemia or hyperglycemia (glucose instability), metabolic acidosis, jaundice • GI: vomiting, abdominal distension, bloody stools (can overlap with NEC) • SKIN: petechiae, purpura, skin color changes (pallor, mottling, jaundice) Diagnostic Workup (Sepsis Workup): • Blood culture: FIRST and most important — obtain BEFORE starting antibiotics • CBC with differential: neutropenia OR neutrophilia, left shift (immature neutrophils), elevated I:T ratio >0.2 • C-reactive protein (CRP) and procalcitonin: markers of inflammation • Lumbar puncture (CSF analysis and culture): if meningitis is suspected • Urine culture: for late-onset sepsis • Chest X-ray: if respiratory signs are present • Blood glucose and electrolytes CRITICAL PRINCIPLE: Do NOT delay antibiotics for cultures. The correct sequence is: draw cultures FIRST → start antibiotics IMMEDIATELY. 'Culture then cover.' Empiric Antibiotic Therapy: Early-onset sepsis: AMPICILLIN + GENTAMICIN — this is the standard empiric regimen • Ampicillin: covers GBS, Listeria, and many gram-positive organisms • Gentamicin: aminoglycoside covering gram-negative organisms (E. coli, Klebsiella) • This combination is SYNERGISTIC — together they are more effective than either alone Prevention: • INTRAPARTUM ANTIBIOTIC PROPHYLAXIS (IAP): Penicillin G or ampicillin IV given to GBS-positive mothers during labor — reduces vertical transmission of GBS significantly. This is a standard of care. • Universal GBS screening at 35–37 weeks gestation in pregnant women • STRICT HAND HYGIENE: the single most effective infection-control measure in the NICU — this aligns with the DOH and WHO's hand hygiene campaign in Philippine hospitals • Limiting unnecessary invasive procedures • Promoting breastfeeding: breast milk contains IgA antibodies and other immune factors • NICU protocols: care bundles for central line-associated bloodstream infection (CLABSI) prevention

Common Congenital Anomalies — Nursing Priorities

Congenital anomalies are structural defects present at birth, caused by genetic, environmental, or multifactorial factors. The NLE does not focus on the surgical repair details (that is the physician's domain) but on NURSING PRIORITIES — how to protect the infant before surgery, prevent complications, support feeding and oxygenation, and support the family. The nursing role for congenital anomalies follows these universal principles: 1. PROTECT THE DEFECT from infection, trauma, and drying 2. PREVENT COMPLICATIONS (aspiration, infection, injury) 3. SUPPORT OXYGENATION AND FEEDING as able 4. PREPARE FOR SURGERY (keeping NPO, IV access, consent) 5. SUPPORT THE FAMILY (bonding, grief, education, referral) Key Conditions and Their Nursing Management: 1. CLEFT LIP AND/OR PALATE Cleft lip is a split in the upper lip; cleft palate is an opening in the roof of the mouth. They can occur alone or together. The primary nursing concern is FEEDING DIFFICULTY and aspiration risk — the infant cannot create the negative suction pressure needed for normal nipple feeding. Nursing Management: • Use SPECIALIZED feeding devices: wide-based, soft, squeezable bottles (e.g., Haberman Feeder, Mead-Johnson cleft palate nurser, pigeon nipple); regular bottles and nipples do not work • Feed in an UPRIGHT or SEMI-UPRIGHT position (45–90 degrees) to use gravity and reduce regurgitation/aspiration • BURP FREQUENTLY (after every 15–30 mL) because the infant swallows more air • Small, frequent feedings to prevent fatigue • Breastfeeding may be possible for palate-only defects (lip closure is intact) • Monitor weight gain and hydration • Support BONDING — parents may feel grief or shock at the appearance of the defect; normalize, validate emotions, show pictures of post-surgical outcomes Post-Operative Care for Cleft Lip Repair: • PROTECT THE SUTURE LINE — do not allow anything to press on the lip • Position: SUPINE or on the SIDE — NOT prone (risk of suture line pressure and trauma) • Use ELBOW RESTRAINTS (Logan bow/elbow restraints) to prevent the infant from touching the suture line • Avoid tension and crying that could stress the suture line • Clean the suture line gently with saline as ordered • Feed with a special feeder (not a regular nipple that presses on the lip) 2. ESOPHAGEAL ATRESIA (EA) AND TRACHEOESOPHAGEAL FISTULA (TEF) The most common type is a blind-ending esophagus (esophageal atresia) with a connection between the lower esophagus and the trachea (tracheoesophageal fistula). The result is that food and secretions cannot pass to the stomach AND stomach acid can reflux into the lungs. The '3 Cs' of TEF — CLASSIC NLE MNEMONIC: • COUGHING • CHOKING • CYANOSIS — with every feeding attempt Additional signs: Excessive DROOLING and FROTHY SECRETIONS (because saliva cannot pass the atresia), inability to pass a nasogastric tube (it coils in the pouch), polyhydramnios (excess amniotic fluid — the fetus could not swallow), stomach air (from fistula between trachea and stomach). Nursing Management (PRE-OPERATIVE PRIORITY): • Keep NPO IMMEDIATELY — no oral fluids or feedings • Suction frequently to clear secretions from the blind pouch • ELEVATE THE HEAD (30–45 degrees) to reduce aspiration of stomach contents through the fistula • Place a REPLOGLE TUBE (sump catheter) in the esophageal pouch on continuous low suction to clear secretions • Maintain IV access for fluids • Prepare for surgery 3. CONGENITAL DIAPHRAGMATIC HERNIA (CDH) Abdominal organs (intestines, stomach, liver) herniate through a defect in the diaphragm into the chest cavity. The lung on the affected side is compressed and underdeveloped (pulmonary hypoplasia). Classic Clinical Presentation: • SEVERE RESPIRATORY DISTRESS immediately or shortly after birth • SCAPHOID (boat-shaped, sunken) ABDOMEN — because abdominal organs are in the chest • BOWEL SOUNDS heard in the CHEST on auscultation • Displaced heart sounds (trachea and mediastinum shift to the opposite side) • Usually occurs on the LEFT side CRITICAL Nursing Management — HIGHEST NLE PRIORITY: • DO NOT BAG-MASK VENTILATE (BMV): Positive pressure mask ventilation inflates the herniated bowel in the chest, worsening lung compression and causing rapid deterioration • INTUBATE immediately if respiratory support is needed • Insert an OROGASTRIC TUBE for decompression (to deflate the bowel in the chest) • Position: head and thorax ELEVATED; some sources say position with the affected side DOWN (to allow the healthy lung to expand) • Avoid hypoxia and acidosis (which worsen pulmonary hypertension, a major complication) 4. MYELOMENINGOCELE (SPINA BIFIDA CYSTICA) A sac containing the spinal cord and meninges protrudes through a defect in the vertebral column, usually in the lumbar or sacral region. The neural tissue is exposed and at risk for trauma and infection. Nursing Management (PRE-OPERATIVE): • Cover the sac with a STERILE SALINE-MOISTENED DRESSING (normal saline-soaked gauze covered with a sterile drape) — keeps the sac moist and prevents drying and cracking which can lead to infection • Position the infant PRONE (face down) to prevent pressure on the sac; some units use a modified lateral position • Handle gently to prevent rupture • Keep the sac FREE FROM URINE AND FECES — the lesion is often near the sacrum; use a sterile drape or adhesive barrier • Monitor for HYDROCEPHALUS — measure head circumference daily, monitor for bulging fontanel and increasing irritability (most myelomeningocele patients develop hydrocephalus and require a ventriculoperitoneal shunt) • Assess lower limb movement and sensation; assess for bladder and bowel function (neurogenic bladder is common) 5. IMPERFORATE ANUS No anal opening is present (rectal atresia). The nurse should assess ALL newborns for a patent anus and passage of meconium within 24–48 hours of birth. Failure to pass meconium is the key sign. Nursing priority: recognize early, keep NPO, and prepare for surgery. 6. GASTROSCHISIS AND OMPHALOCELE Both involve abdominal wall defects where abdominal contents are outside the body: • OMPHALOCELE: organs are covered by a peritoneal sac; associated with chromosomal anomalies (Trisomy 13, 18) • GASTROSCHISIS: organs are NOT covered (exposed bowel); no sac; located to the right of the umbilicus Nursing Management: • Wrap exposed organs in STERILE SALINE-SOAKED GAUZE and cover with plastic wrap to prevent fluid loss and infection • Maintain NPO and IV access • Position to prevent compression of the exposed organs • Monitor temperature (exposed organs cause major heat and fluid loss) 7. DOWN SYNDROME (TRISOMY 21) Key features: flat facial profile, upward-slanting eyes (epicanthal folds), simian crease (single palmar crease), hypotonia, Brushfield spots (white spots on iris), congenital heart defects (endocardial cushion defect most common — ASD and VSD), GI anomalies (duodenal atresia, Hirschsprung disease). Nursing priorities: support feeding (hypotonia affects suck), monitor for cardiac defects, and provide family support and counseling about long-term developmental needs.

Infant of a Diabetic Mother (IDM)

When a mother has poorly controlled diabetes mellitus during pregnancy (whether pre-gestational Type 1 or Type 2 DM, or gestational diabetes), her elevated blood glucose levels cross the placenta. The fetal pancreas responds by producing EXCESS INSULIN (fetal hyperinsulinemia) to manage the high glucose load. This fetal hyperinsulinemia has several major consequences that the nurse must anticipate and manage: 1. MACROSOMIA (Large for Gestational Age, LGA): • Insulin is a growth hormone — excess insulin drives excess fat deposition and organ growth • The IDM typically weighs more than 4,000 grams (4 kg or above) or above the 90th percentile for gestational age • The baby looks 'fat and ruddy' (plethoric) • RISKS of macrosomia: - Birth injuries: shoulder dystocia (shoulders too wide to pass through the birth canal), brachial plexus injury (Erb's palsy), clavicle fracture, intracranial hemorrhage - Need for cesarean section - Hyperviscosity from polycythemia 2. NEONATAL HYPOGLYCEMIA — THE MOST CRITICAL PROBLEM: • When the umbilical cord is cut, the maternal glucose supply stops ABRUPTLY, but the infant's pancreas continues producing excess insulin for hours • Blood glucose drops rapidly — typically within the FIRST 1–3 HOURS of life • Definition of neonatal hypoglycemia: blood glucose less than 40–47 mg/dL (depending on the reference; most Philippine programs use <40 or <45 mg/dL as the threshold for treatment in term infants) • Symptoms of hypoglycemia in neonates: jitteriness/tremors, lethargy, poor feeding, weak or high-pitched cry, apnea, cyanosis, pallor, diaphoresis (rare in newborns), seizures • Asymptomatic hypoglycemia is common and can cause brain damage without obvious signs — this is why ROUTINE monitoring is essential NURSING PRIORITY: Monitor blood glucose within the FIRST HOUR of life and every 1–3 hours thereafter in ALL IDMs. Do not wait for symptoms. Treatment of hypoglycemia: • If the infant is SYMPTOMATIC or glucose is very low: IV dextrose (D10W bolus, followed by D10W infusion) • If the infant is ASYMPTOMATIC with borderline low glucose: Early feeding (breast milk or formula) • Monitor glucose 15–30 minutes after intervention to ensure response 3. OTHER COMPLICATIONS OF IDM: • HYPOCALCEMIA: Calcium levels drop after birth; the exact mechanism involves hypomagnesemia (low magnesium inhibits PTH release). Signs: jitteriness, tremors (similar to hypoglycemia — check both!). • POLYCYTHEMIA: High RBC count from intrauterine hypoxia (maternal diabetes impairs placental circulation). Polycythemia causes hyperviscosity, which can lead to jaundice, poor perfusion, and organ ischemia. • HYPERBILIRUBINEMIA: Result of polycythemia — increased RBC breakdown increases bilirubin load. • RESPIRATORY DISTRESS SYNDROME: Insulin delays surfactant maturation — IDMs have higher RDS risk even at term. • CONGENITAL ANOMALIES: Poorly controlled diabetes in the FIRST TRIMESTER (organogenesis) is associated with congenital heart defects, sacral agenesis (caudal regression syndrome — pathognomonic of maternal DM), and neural tube defects. • SMALL LEFT COLON SYNDROME: Functional intestinal immaturity causing abdominal distension. Nursing Care Priorities for IDM: 1. Monitor blood glucose frequently (within 1st hour, then every 1–3 hours for 12–24 hours) 2. Initiate early feeding — breastfeeding or formula within the first 30–60 minutes of life 3. Monitor for signs of hypoglycemia (jitteriness, lethargy, apnea) 4. Assess for birth injuries: Moro reflex asymmetry (Erb's palsy), clavicle crepitus 5. Monitor hematocrit for polycythemia (normal Hct in newborn: 45–65%; polycythemia if >65%) 6. Monitor bilirubin 7. Watch for respiratory distress 8. Monitor serum calcium (hypocalcemia) 9. Educate the mother on maintaining blood glucose control in future pregnancies

This question tests THREE things simultaneously: (1) knowledge that hyperoxia causes ROP in preterm infants; (2) the correct target saturation range (91–95% for most preterm infants); (3) the ability to explain clinical reasoning to a parent in plain language — a CRITICAL nursing competency under RA 9173. The NLE assesses not just what you know, but whether you can apply and communicate that knowledge.

This question requires a comprehensive nursing care plan for phototherapy — a high-frequency NLE topic. The NLE may ask for the 'priority' action (cover the eyes) or ask which action is WRONG (leaving clothes on, NOT turning off lights for blood draw). Knowing all interventions allows you to answer any variant of this question.

This scenario tests multiple competencies simultaneously: (1) recognition of sepsis in a neonate (temperature 36.2°C = hypothermia, not fever); (2) the 'culture before antibiotics' principle; (3) knowledge of the correct empiric antibiotic regimen (ampicillin + gentamicin); (4) the complete sepsis workup sequence. The NLE commonly asks about the FIRST action (obtain blood culture), the antibiotic names, and why we use ampicillin + gentamicin specifically.

This problem tests the MOST CRITICAL nursing decision in CDH — the contraindication to bag-mask ventilation. Even experienced nurses' first instinct in a distressed neonate is to reach for the bag-mask. In CDH, this is dangerous. The NLE tests this because it is a life-or-death decision based on recognizing the specific diagnosis from physical findings.

This scenario tests multiple concepts: pathologic vs. physiologic jaundice (timing = key), the mechanism of Rh incompatibility, the appropriate diagnostic workup (Coombs test), and nursing advocacy (noting the missed RhoGAM). RhoGAM given within 72 hours postpartum prevents maternal sensitization and protects future pregnancies.