Question 1: Galactosemia, if untreated, can lead to which life-threatening complication in the newborn period?

• Adrenal crisis
• Liver failure, sepsis (especially E. coli), and hypoglycemia (Correct answer)
• Cardiac arrhythmias
• Renal failure

Correct answer: Liver failure, sepsis (especially E. coli), and hypoglycemia

Untreated galactosemia causes hepatocellular damage, coagulopathy, hypoglycemia, and predisposes to E. coli sepsis, which can be rapidly fatal.

Question 2: Hypoxic-ischemic encephalopathy (HIE) in a term neonate is most accurately assessed using which scoring system?

• CRIB score
• Sarnat or Thompson staging of HIE severity (Correct answer)
• Apgar score alone
• Ballard gestational age score

Correct answer: Sarnat or Thompson staging of HIE severity

Sarnat and Thompson staging systems assess the severity of HIE based on neurological signs, guiding decisions about therapeutic hypothermia.

Question 3: The pistol is an electromagnetically operated device that activates both inspiration and expiration.

• PSV
• APRV
• HFJV
• HFOV (Correct answer)

Correct answer: HFOV

High-Frequency Oscillatory Ventilation (HFOV) utilizes a piston or diaphragm, often referred to as a 'pistol,' to generate rapid, small tidal volumes. Unlike conventional ventilators, HFOV actively drives both inspiration and expiration. This unique mechanism allows for very high respiratory rates and low tidal volumes, providing gentle ventilation and minimizing lung injury.

Question 4: Which enzyme is responsible for converting heme to biliverdin in the catabolism of hemoglobin?

• Biliverdin reductase
• Heme oxygenase (Correct answer)
• Glutathione peroxidase
• UDP-glucuronosyltransferase

Correct answer: Heme oxygenase

Heme oxygenase cleaves the heme ring to produce biliverdin, carbon monoxide, and free iron, which is the first step in bilirubin production.

Question 5: Phenobarbital is used in neonatal seizures. What is an important side effect to monitor?

• Tachycardia
• Hyperthermia
• Respiratory depression, sedation, and hypotension (Correct answer)
• Hyperglycemia

Correct answer: Respiratory depression, sedation, and hypotension

Phenobarbital can cause respiratory depression, sedation, and hypotension in neonates, requiring close monitoring of vital signs and respiratory status.

Question 6: A neonate with supraventricular tachycardia (SVT) at a rate of 280 bpm and hemodynamic instability requires:

• Immediate synchronized cardioversion (Correct answer)
• Oral propranolol
• Adenosine IV push as initial treatment
• Digoxin loading

Correct answer: Immediate synchronized cardioversion

Hemodynamically unstable SVT requires immediate synchronized cardioversion; adenosine is used for stable SVT.

Question 7: Kangaroo care (skin-to-skin holding) in the NICU has been shown to provide which benefit?

• Delay weight gain
• Increase oxygen requirements
• Increase infection risk
• Stabilize temperature, heart rate, and improve breastfeeding outcomes (Correct answer)

Correct answer: Stabilize temperature, heart rate, and improve breastfeeding outcomes

Kangaroo care stabilizes neonatal temperature, heart rate, and respiratory rate, promotes breastfeeding, and improves neurodevelopmental and bonding outcomes.

Question 8: Which condition is characterized by white matter injury in premature neonates occurring in a watershed distribution?

• Periventricular leukomalacia (PVL) (Correct answer)
• Subependymal hemorrhage
• Germinal matrix hemorrhage
• Intraventricular hemorrhage (IVH)

Correct answer: Periventricular leukomalacia (PVL)

PVL occurs in the arterial border zones around the lateral ventricles, making premature white matter vulnerable to ischemia-reperfusion and excitotoxic injury.

Question 9: Inhaled nitric oxide (iNO) is used in neonates primarily to:

• Decrease cardiac output
• Treat bronchopulmonary dysplasia directly
• Selectively dilate pulmonary vasculature (Correct answer)
• Increase systemic blood pressure

Correct answer: Selectively dilate pulmonary vasculature

iNO selectively dilates pulmonary vasculature without systemic effects, reducing pulmonary hypertension and improving oxygenation.

Question 10: What is the recommended dose of epinephrine for neonatal cardiac resuscitation via endotracheal tube per NRP guidelines?

• 0.05-0.1 mg/kg ET (Correct answer)
• 0.001 mg/kg IV
• 0.5 mg/kg IV
• 0.01-0.03 mg/kg IV

Correct answer: 0.05-0.1 mg/kg ET

When IV access is unavailable, NRP recommends 0.05-0.1 mg/kg epinephrine via ET tube, though IV/IO administration is preferred for reliability.

Question 11: When a newborn is born with developing lung tissue that is not attached to the airways, this condition is known as:

• Congenital diaphragmatic hernia
• Bronchopulmonary sequestration (Correct answer)
• Congenital cystic adenomatoid malformation
• Pleural effusion

Correct answer: Bronchopulmonary sequestration

Bronchopulmonary sequestration is a rare congenital malformation where a portion of lung tissue develops abnormally and is not connected to the normal bronchial tree or pulmonary circulation. Instead, it receives its blood supply from a systemic artery. This unattached, non-functional lung tissue can be intralobar (within the normal lung) or extralobar (separate from the normal lung).

Question 12: Which intervention has been shown to reduce the incidence and severity of IVH in premature neonates?

• High-dose vitamin E
• Immediate delivery room intubation
• Antenatal corticosteroids administered to the mother (Correct answer)
• Routine lumbar puncture

Correct answer: Antenatal corticosteroids administered to the mother

Antenatal corticosteroids accelerate fetal brain maturation and vascular stability, significantly reducing the incidence and severity of IVH in premature infants.

Question 13: A neonate at 32 weeks corrected age is noted to have absent end-diastolic flow on umbilical artery Doppler. Which management is most appropriate?

• Increase maternal IV fluid rate and reassess in 24 hours
• Begin oral nifedipine for maternal blood pressure management
• Immediate cesarean delivery regardless of fetal status
• Initiate antenatal corticosteroids and consider delivery timing based on full clinical picture (Correct answer)

Correct answer: Initiate antenatal corticosteroids and consider delivery timing based on full clinical picture

Absent end-diastolic flow indicates severe uteroplacental insufficiency; management includes steroids for lung maturity and individualized delivery timing.

Question 14: Batter Syndrome, Pyloric Stenosis, Cystic Fibrosis, and Correction of Chronic Respiratory Acidosis. Answer: Metabolic Alkalosis Causes

• FALSE
• TRUE (Correct answer)

Correct answer: TRUE

The statement is TRUE because all listed conditions can indeed lead to metabolic alkalosis. Bartter syndrome causes renal salt wasting and subsequent alkalosis, pyloric stenosis results in loss of gastric acid through vomiting, and cystic fibrosis can lead to electrolyte imbalances contributing to alkalosis. Additionally, the correction of chronic respiratory acidosis can cause a post-hypercapnic metabolic alkalosis as the kidneys excrete less bicarbonate.

Question 15: Meconium aspiration syndrome (MAS) is most likely to occur in which infant?

• 24-week premature infant
• Infant of a diabetic mother without fetal distress
• Post-term or term infant with fetal distress (Correct answer)
• Preterm infant with RDS

Correct answer: Post-term or term infant with fetal distress

MAS occurs when a stressed term or post-term fetus passes meconium in utero and aspirates it, causing chemical pneumonitis and airway obstruction.

Question 16: Dopamine at low doses (2-5 mcg/kg/min) primarily acts on which receptors in neonates?

• Alpha-1 receptors causing vasoconstriction
• Dopaminergic receptors increasing renal and mesenteric perfusion (Correct answer)
• Beta-2 adrenergic receptors causing bronchodilation
• Cholinergic receptors decreasing heart rate

Correct answer: Dopaminergic receptors increasing renal and mesenteric perfusion

Low-dose dopamine primarily stimulates dopaminergic receptors, promoting renal and mesenteric vasodilation, though this effect is less reliable in neonates.

Question 17: A premature infant in the NICU benefits most from which developmental care principle to reduce stress?

• Bright overhead lighting 24 hours a day
• Continuous auditory stimulation
• Clustering care activities and providing containment/nesting (Correct answer)
• Frequent bathing and stimulation

Correct answer: Clustering care activities and providing containment/nesting

Clustering care reduces the frequency of disturbing the infant, while containment/nesting provides proprioceptive boundaries that mimic the womb and reduce stress.

Question 18: A neonate presents with jitteriness and irritability at 24 hours of age. Mother has a history of opioid use disorder. What condition is most likely?

• Neonatal meningitis
• Hypocalcemia
• Hypoglycemia
• Neonatal opioid withdrawal syndrome (NOWS) (Correct answer)

Correct answer: Neonatal opioid withdrawal syndrome (NOWS)

NOWS (formerly NAS) presents with jitteriness, irritability, high-pitched cry, and feeding difficulties in infants exposed to opioids in utero.

Question 19: Necrotizing enterocolitis (NEC) is most common in which neonatal population?

• Post-term infants with meconium aspiration
• Term infants born by cesarean section
• Large for gestational age (LGA) infants
• Premature infants, especially those <32 weeks or <1500g (Correct answer)

Correct answer: Premature infants, especially those <32 weeks or <1500g

NEC primarily affects premature infants with immature gut immunity, motility, and mucosal barrier function, with greatest risk in those <32 weeks or <1500g.

Question 20: Which of the following chromosomal diseases is marked by health issues such as heart disease, developmental delays, and learning disabilities?

• Klinefelter syndrome
• Turner syndrome
• Williams syndrome
• Down syndrome

Down syndrome (Trisomy 21) is a chromosomal disorder caused by the presence of an extra copy of chromosome 21. Individuals with Down syndrome commonly experience a range of health issues, including congenital heart defects, varying degrees of developmental delays, and intellectual disabilities. They also often have distinct physical characteristics.

Question 21: Which medication is first-line for treating morphine-refractory seizures in neonates after phenobarbital failure?

• Valproic acid
• Carbamazepine
• Levetiracetam or phenytoin/fosphenytoin (Correct answer)
• Lamotrigine

Correct answer: Levetiracetam or phenytoin/fosphenytoin

Levetiracetam or phenytoin/fosphenytoin are commonly used second-line agents when phenobarbital fails to control neonatal seizures.

Question 22: What is the most appropriate initial fluid for treating severe hypernatremia (sodium >165 mEq/L) in a neonate?

• 5% dextrose water bolus
• Hypotonic fluid with gradual sodium correction over 48-72 hours (Correct answer)
• Normal saline (0.9% NaCl) bolus
• Free water bolus to rapidly lower sodium

Correct answer: Hypotonic fluid with gradual sodium correction over 48-72 hours

Rapid sodium correction in hypernatremia risks cerebral edema; gradual correction with hypotonic fluids at a rate of <0.5 mEq/L/hr reduces this risk.

Question 23: Intraventricular hemorrhage (IVH) is most commonly graded using which system in neonates?

• Papile grading system (Grades I-IV) (Correct answer)
• Glasgow Coma Scale
• FLACC scale
• Neonatal Neurological Risk Score

Correct answer: Papile grading system (Grades I-IV)

The Papile grading system classifies IVH from Grade I (subependymal only) to Grade IV (parenchymal involvement), guiding prognosis and management.

Question 24: Which scoring tool is most commonly used to assess neonatal opioid withdrawal syndrome (NOWS) severity?

• Modified Sarnat score
• Finnegan Neonatal Abstinence Scoring Tool (Correct answer)
• Thompson Score
• Ballard Maturity Score

Correct answer: Finnegan Neonatal Abstinence Scoring Tool

The Finnegan score assesses 21 signs of neonatal abstinence across CNS, autonomic, and GI categories to guide pharmacologic treatment decisions.

Question 25: Which carbohydrate is the primary energy source in human breast milk and most neonatal formulas?

• Maltodextrin
• Sucrose
• Fructose
• Lactose (Correct answer)

Correct answer: Lactose

Lactose is the primary carbohydrate in human milk and most standard infant formulas, providing approximately 40% of total caloric intake.

Question 26: Which of the following is the greatest technique to swiftly remove air from the chest cavity in the case of a baby with pneumothorax symptoms?

• Extracorporeal membrane oxygenation
• Plastic tube to suction
• Add nitric oxide to oxygen
• Using a needle and syringe (Correct answer)

Correct answer: Using a needle and syringe

Needle aspiration using a needle and syringe is the most immediate and life-saving technique for decompressing a tension pneumothorax in a neonate. This procedure rapidly removes trapped air from the chest cavity, alleviating pressure on the heart and lungs. It serves as a crucial bridge to stabilize the infant before a more definitive chest tube insertion can be performed.

Question 27: When assessing pain in a non-verbal ventilated neonate, which validated tool is most appropriate?

• Visual Analog Scale (VAS)
• Numeric Rating Scale
• Wong-Baker FACES Scale
• Neonatal Infant Pain Scale (NIPS) or PIPP (Correct answer)

Correct answer: Neonatal Infant Pain Scale (NIPS) or PIPP

NIPS (Neonatal Infant Pain Scale) or PIPP (Premature Infant Pain Profile) assess behavioral and physiologic pain indicators in non-verbal neonates.

Question 28: Which four-extremity blood pressure finding is most consistent with coarctation of the aorta?

• Higher blood pressure in upper extremities than lower extremities by >10 mmHg (Correct answer)
• Equal pressures in all four limbs
• Low blood pressure in all extremities
• Higher blood pressure in lower extremities than upper extremities

Correct answer: Higher blood pressure in upper extremities than lower extremities by >10 mmHg

Coarctation of the aorta causes upper extremity hypertension and reduced perfusion pressure in the lower extremities, creating a measurable gradient.

Question 29: Furosemide is used in neonates with fluid overload. What electrolyte abnormality must be monitored closely?

• Hyperkalemia
• Hyperphosphatemia
• Hypokalemia and hypocalcemia (Correct answer)
• Hypernatremia

Correct answer: Hypokalemia and hypocalcemia

Furosemide causes renal loss of potassium and calcium, predisposing neonates to hypokalemia, hypocalcemia, and nephrocalcinosis with prolonged use.

Question 30: A preterm infant has persistently low blood pressure. Which condition should be ruled out before initiating vasopressors?

• Adrenal insufficiency (especially after antenatal steroids) (Correct answer)
• Hyperglycemia
• Hyperbilirubinemia
• Polycythemia

Correct answer: Adrenal insufficiency (especially after antenatal steroids)

Adrenal insufficiency in premature or steroid-exposed neonates can cause refractory hypotension that responds to hydrocortisone rather than vasopressors.