CERTIFICATION – NCC EXAM - LATEST PRACTICE QUESTIONS
AND 100% VERIFIED CORRECT ANSWERS | COMPLETE EXAM
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Exam Coverage & Structure Overview:
This 150-question comprehensive assessment reflects the content domains tested on the Neonatal Nurse
Practitioner (NNP-BC) certification administered by the National Certification Corporation.
The exam includes:
General neonatal physiology & pathophysiology (15%)
Advanced neonatal assessment & diagnostics (15%)
Neonatal management (respiratory, cardiovascular, GI, GU, endocrine, neurologic, hematologic,
infectious, genetic, dermatologic, musculoskeletal) (40%)
Pharmacology & therapeutics (10%)
Professional role, ethics, legal standards, research, and evidence-based practice (10%)
Procedures & stabilization (10%)
1. A 28-week gestation neonate develops respiratory distress within 10 minutes
of birth. Chest radiograph reveals a ground-glass appearance with air
bronchograms. The most likely pathophysiologic mechanism is:
A. Inactivation of surfactant by meconium
B. Pulmonary overcirculation from PDA
C. Surfactant deficiency due to type II pneumocyte immaturity
D. Delayed fetal lung fluid clearance
Rationale: Premature infants lack sufficient surfactant due to immature type II
pneumocytes, leading to Respiratory Distress Syndrome (RDS).
2. A term neonate born via elective C-section without labor presents with
tachypnea and mild retractions. Oxygen saturation is 94% on room air. Most
, likely diagnosis:
A. Persistent pulmonary hypertension
B. Meconium aspiration syndrome
C. Transient tachypnea of the newborn (TTN)
D. Congenital pneumonia
Rationale: TTN results from delayed lung fluid clearance, especially common after
cesarean without labor.
3. Which blood gas finding is most consistent with uncompensated respiratory
acidosis?
A. pH 7.30, PaCO₂ 30
B. pH 7.25, PaCO₂ 60
C. pH 7.45, PaCO₂ 28
D. pH 7.38, PaCO₂ 42
Rationale: Elevated PaCO₂ with decreased pH indicates primary respiratory
acidosis.
4. A preterm infant with worsening oxygen requirement at 2 weeks of age is
diagnosed with evolving bronchopulmonary dysplasia. Primary contributing
factor:
A. Surfactant overproduction
B. Prolonged mechanical ventilation and oxygen toxicity
, C. Fetal anemia
D. Congenital diaphragmatic hernia
Rationale: BPD results from lung injury due to prolonged oxygen and ventilator
exposure.
5. A neonate with differential pre- and post-ductal oxygen saturation >10%
suggests:
A. Coarctation of the aorta
B. Ventricular septal defect
C. Persistent pulmonary hypertension of the newborn (PPHN)
D. Patent foramen ovale
Rationale: Right-to-left shunting through the ductus arteriosus in PPHN causes
pre/post-ductal differences.
6. The most sensitive early sign of neonatal sepsis is:
A. Fever
B. Leukocytosis
C. Temperature instability
D. Hypotension
Rationale: Neonates often present with hypothermia or unstable temperatures
rather than fever.
, 7. An infant of a diabetic mother develops jitteriness at 1 hour of life. Glucose
is 28 mg/dL. Initial management:
A. IV insulin
B. IV dextrose bolus 2 mL/kg D10W
C. IM glucagon
D. Oral formula only
Rationale: Symptomatic hypoglycemia requires immediate IV dextrose bolus.
8. A 32-week infant presents with abdominal distension, bloody stools, and
pneumatosis intestinalis on x-ray. Diagnosis:
A. Meconium ileus
B. Hirschsprung disease
C. Necrotizing enterocolitis (NEC)
D. Volvulus
Rationale: Pneumatosis intestinalis is pathognomonic for NEC.
9. Which electrolyte abnormality is most common in ELBW infants in first 24
hours?
A. Hypernatremia
B. Hyponatremia due to free water shifts
C. Hyperkalemia from renal failure
D. Hypocalcemia from hypoparathyroidism
Rationale: Early sodium shifts occur due to immature renal handling.