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CCRN (Neonatal) - Direct Care Eligibility Pathway Free Sample Questions

12 free sample questions167 in the full practice test

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CCRN-NEONATAL Sample Questions

  1. Question 1

    Intermediate

    CLINICAL JUDGMENT · Alteration in the transition to extrauterine life (e.g., PDA, PFO, PPHN)

    A 24-week gestational age neonate on postnatal day 4 begins to exhibit increased work of breathing, bounding brachial pulses, and a hyperdynamic precordium. The bedside nurse notes the infant's blood pressure is 54/22 mmHg (mean arterial pressure 31 mmHg) with an echocardiogram revealing a large left-to-right shunt across the ductus arteriosus. Which pathophysiological mechanism directly accounts for this infant's widened pulse pressure?

    Answer and explanation

    Correct answer: C

    Large left-to-right ductal shunts cause pulmonary overcirculation. Diastolic run-off from the aorta into the low-pressure pulmonary vascular bed depresses diastolic blood pressure, producing a widened pulse pressure and bounding pulses.

  2. Question 2

    Advanced

    CLINICAL JUDGMENT · Congenital heart defects / Alteration in the transition to extrauterine life

    A full-term infant delivered via emergent cesarean section for non-reassuring fetal heart tones presents at 3 hours of life with marked central cyanosis, tachypnea, and grunting. The infant is placed on an oxygen hood with 100% FiO2.

    Simultaneous arterial blood gas analysis reveals a pre-ductal (right radial) PaO2 of 88 mmHg and a post-ductal (umbilical arterial catheter) PaO2 of 44 mmHg. Pre-ductal pulse oximetry shows 94% on the right wrist, while post-ductal pulse oximetry displays 81% on the left foot. An echocardiogram is urgently ordered to rule out congenital heart defects.

    Which physiological diagnosis is most consistently supported by this pre- and post-ductal oxygenation gradient?

    Answer and explanation

    Correct answer: D

    A pre- to post-ductal SpO2 gradient >=10% or PaO2 difference >15-20 mmHg indicates unoxygenated blood shunting right-to-left across a patent ductus arteriosus into the descending aorta, classic for PPHN.

  3. Question 3

    IntermediateMultiple answers

    CLINICAL JUDGMENT · Congenital heart defects

    A 2-day-old term infant with unrecognized critical aortic coarctation undergoes acute spontaneous functional closure of the ductus arteriosus. Which TWO clinical findings indicate systemic hypoperfusion resulting from this ductal closure? (Select TWO)

    Answer and explanation

    Correct answers: B, E

    Ductal closure in critical aortic coarctation abruptly obstructs descending aortic flow, causing diminished or absent femoral pulses and lower extremity hypotension.

    Loss of ductal patency severely reduces systemic perfusion to the kidneys and visceral organs, rapidly causing tissue hypoxia, profound lactic acidosis, and oliguria.

  4. Question 4

    Intermediate

    CLINICAL JUDGMENT · Congenital anomalies (e.g., CDH, TEF-EA, choanal atresia, tracheal malacia/stenosis/atresia, CPAM, chylothorax)

    A neonate is delivered at 38 weeks' gestation with prenatal ultrasound findings concerning for a left-sided congenital diaphragmatic hernia (CDH). Immediately following delivery, the infant is apneic with a scaphoid abdomen and heart sounds displaced toward the right hemithorax. What is the immediate priority nursing intervention in the delivery room?

    flowchart TD Delivery([Delivery of CDH Infant]) --> CheckResp{Respiratory Distress?} CheckResp -->|Yes| Intubate[Immediate Endotracheal Intubation] CheckResp -->|Avoid| BagMask[Bag-Mask Ventilation CONTRAINDICATED] Intubate --> Decompress[Insert Replogle/OG Tube to Low Continuous Suction]
    Answer and explanation

    Correct answer: B

    Bag-mask ventilation is strictly contraindicated in CDH because air enters the herniated stomach/intestines, worsening mediastinal shift. Immediate endotracheal intubation and gastric suction prevent pulmonary compromise.

  5. Question 5

    Beginner

    CLINICAL JUDGMENT · Congenital anomalies (e.g., CDH, TEF-EA, choanal atresia, tracheal malacia/stenosis/atresia, CPAM, chylothorax)

    A term newborn shortly after birth exhibits excessive, frothy oral secretions that bubble from the mouth and nose. When the nurse attempts to pass an 8-French orogastric tube to decompress the stomach prior to the initial feeding, the catheter meets firm resistance and curls back in the upper esophagus at approximately 10 cm. Which congenital anomaly should the critical care nurse immediately suspect?

    Answer and explanation

    Correct answer: D

    Excessive frothy oral secretions, choking episodes, and inability to advance an orogastric tube past 10–12 cm into the stomach are hallmark clinical indicators of esophageal atresia.

  6. Question 6

    Intermediate

    CLINICAL JUDGMENT · Respiratory distress syndrome (RDS) / Non-invasive positive pressure ventilation

    A multidisciplinary NICU quality improvement committee is reviewing evidence-based respiratory management protocols for spontaneously breathing preterm infants born between 26 and 29 weeks' gestation. Based on randomized clinical trials and neonatal resuscitation guidelines, what is the primary clinical benefit of initiating respiratory stabilization with continuous positive airway pressure (CPAP) compared to routine prophylactic endotracheal intubation?

    Answer and explanation

    Correct answer: D

    Evidence demonstrates that starting spontaneously breathing very preterm neonates on CPAP reduces the composite outcome of death and BPD (number needed to treat is 25) without increasing adverse outcomes like IVH or NEC.

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