Neonatal/Pediatric Specialty (NPS) Examination — Questions and Answers

Question 1: Which pathogen is most commonly identified in NICU central line-associated bloodstream infections (CLABSI)?

Klebsiella pneumoniae
Candida albicans
Coagulase-negative Staphylococcus (Correct answer)
Escherichia coli

Correct answer: Coagulase-negative Staphylococcus

Coagulase-negative Staphylococcus is the most frequently isolated CLABSI pathogen in the NICU due to its ability to adhere and form biofilms on catheter surfaces.

Question 2: Why does therapeutic hypothermia (TH) reduce brain injury in hypoxic-ischemic encephalopathy (HIE)?

It attenuates the secondary energy failure phase by suppressing glutamate excitotoxicity and apoptosis (Correct answer)
It prevents seizures by reducing neuronal firing rates
It increases cerebral blood flow during cooling
It reduces oxygen consumption in the brain during acute hypoxia

Correct answer: It attenuates the secondary energy failure phase by suppressing glutamate excitotoxicity and apoptosis

TH targets the secondary injury phase (6–72 hours after hypoxia), reducing glutamate excitotoxicity, free radical generation, inflammation, and apoptosis.

Question 3: Retinopathy of prematurity (ROP) development is primarily driven by which pathophysiological mechanism?

Direct light toxicity to the retina
Hyperoxia causing cessation of retinal vascularization followed by hypoxia-driven neovascularization (Correct answer)
Vitamin A deficiency impairing photoreceptor development
Systemic hypertension causing retinal artery damage

Correct answer: Hyperoxia causing cessation of retinal vascularization followed by hypoxia-driven neovascularization

Hyperoxia stops normal retinal vessel growth; when oxygen is reduced, VEGF-driven pathological neovascularization occurs, which can cause retinal detachment.

Question 4: What is the target oxygen saturation range recommended for preterm neonates less than 32 weeks gestation?

85–89%
96–99%
100%
91–95% (Correct answer)

Correct answer: 91–95%

Current evidence supports targeting SpO2 of 91–95% in preterm neonates <32 weeks to balance risks of retinopathy of prematurity and mortality.

Question 5: Which vaccination is specifically recommended for all healthcare workers in the NICU as part of a 'cocooning' strategy to protect neonates from pertussis?

Hepatitis B vaccine series
Tdap (tetanus, diphtheria, acellular pertussis) booster (Correct answer)
Annual influenza vaccine
MMR (measles, mumps, rubella) vaccine

Correct answer: Tdap (tetanus, diphtheria, acellular pertussis) booster

Tdap vaccination for all NICU healthcare workers creates a protective immune 'cocoon' around neonates who are too young to have completed their pertussis vaccination series.

Question 6: A 9-year-old child aspirates while eating gummy bears with her twin sister. She was laying on her left side at the time of aspiration. The child is in no apparent distress. The neonatal/pediatric specialist quickly suctions the child. What should the specialist do next?

Sit the patient up and perform the Heimlich maneuver
Perform back blows
Roll the patient to the right side for postural drainage (Correct answer)
Order a chest x-ray

Correct answer: Roll the patient to the right side for postural drainage

Since the child aspirated while lying on her left side, the aspirated material is most likely in the left lung. To facilitate postural drainage and help clear the airway, the specialist should roll the patient to the opposite (right) side. This position uses gravity to help move secretions from the affected left lung segment into larger airways for removal.

Question 7: Which condition is the most common cause of air leak syndrome in mechanically ventilated neonates?

Congenital diaphragmatic hernia
Meconium aspiration syndrome
Pulmonary hypoplasia
RDS with high PIP ventilation (Correct answer)

Correct answer: RDS with high PIP ventilation

Excessive peak inspiratory pressure (PIP) during mechanical ventilation for RDS is the most common cause of pulmonary air leak (pneumothorax, PIE) in neonates.

Question 8: A 3-year-old child has an anaphylactic reaction at a peanut-free facility. What is the first-line treatment?

Diphenhydramine IV
Methylprednisolone IV
Albuterol nebulization
Epinephrine IM (0.01 mg/kg) into the anterolateral thigh (Correct answer)

Correct answer: Epinephrine IM (0.01 mg/kg) into the anterolateral thigh

Intramuscular epinephrine 0.01 mg/kg (max 0.5 mg) into the anterolateral thigh is the first-line treatment for anaphylaxis in children — antihistamines and steroids are adjuncts.

Question 9: Which model of care best supports family involvement during rounds in the NICU?

Family-integrated care (FICare) with parents participating in daily bedside rounds (Correct answer)
Weekly family meetings separate from daily rounds
Limiting family rounds participation to attending physicians only
Conducting rounds outside the room to maintain privacy

Correct answer: Family-integrated care (FICare) with parents participating in daily bedside rounds

Family-Integrated Care (FICare) incorporates parents as active participants in daily rounds, care decisions, and hands-on care, improving outcomes and parental competence.

Question 10: What is the correct dose of epinephrine for neonatal cardiac arrest via the endotracheal route?

0.05–0.1 mg/kg (Correct answer)
0.3–0.5 mg/kg
0.01–0.03 mg/kg
0.1–0.3 mg/kg

Correct answer: 0.05–0.1 mg/kg

The ET dose of epinephrine in neonatal resuscitation is 0.05–0.1 mg/kg (higher than IV) due to poor absorption via the tracheal route.

Question 11: Which of the following is a common clinical finding in a neonate with patent ductus arteriosus (PDA)?

Decreased breath sounds
Cyanosis
Bradycardia
Bounding peripheral pulses (Correct answer)

Correct answer: Bounding peripheral pulses

Patent ductus arteriosus (PDA) involves the failure of a fetal blood vessel to close after birth, leading to shunting of blood from the aorta to the pulmonary artery. This results in increased systemic blood flow during diastole, causing a wide pulse pressure and characteristically bounding peripheral pulses. This clinical finding is a key indicator of PDA.

Question 12: According to the WHO 'Five Moments for Hand Hygiene,' at which moments must hand hygiene be performed?

Before aseptic procedures and after body fluid exposure only
Before and after patient contact only
Before patient contact, before aseptic procedures, after body fluid exposure, after patient contact, and after contact with patient surroundings (Correct answer)
At the start and end of each shift only

Correct answer: Before patient contact, before aseptic procedures, after body fluid exposure, after patient contact, and after contact with patient surroundings

The WHO Five Moments framework identifies all five critical points in patient care that require hand hygiene to comprehensively prevent pathogen transmission.

Question 13: What is the primary purpose of performing a Silverman-Anderson score on a neonate?

To determine the need for surfactant therapy
To evaluate the severity of respiratory distress (Correct answer)
To monitor oxygen saturation levels
To assess gestational age

Correct answer: To evaluate the severity of respiratory distress

The Silverman-Anderson score is a clinical assessment tool specifically designed to quantify the severity of respiratory distress in neonates. It evaluates five parameters related to respiratory effort, such as nasal flaring and retractions. A higher score indicates more severe respiratory distress, which helps guide appropriate medical interventions and monitoring.

Question 14: What is the recommended dose of caffeine citrate loading dose for apnea of prematurity in neonates?

5 mg/kg IV
30 mg/kg IV
20 mg/kg IV (Correct answer)
10 mg/kg IV

Correct answer: 20 mg/kg IV

Caffeine citrate loading dose for apnea of prematurity is 20 mg/kg IV, followed by a maintenance dose of 5–10 mg/kg/day.

Question 15: Which ventilation mode delivers a set tidal volume regardless of changes in lung compliance in mechanically ventilated neonates?

Synchronized intermittent mandatory ventilation (SIMV)
Volume-guaranteed ventilation (VG) (Correct answer)
Pressure-controlled ventilation (PCV)
High-frequency oscillatory ventilation (HFOV)

Correct answer: Volume-guaranteed ventilation (VG)

Volume-guaranteed ventilation delivers a clinician-set tidal volume by adjusting inspiratory pressure breath-by-breath, protecting against volutrauma as compliance changes.

Question 16: Which piece of equipment is essential for delivering inhaled nitric oxide (iNO) therapy in neonates with persistent pulmonary hypertension?

Venturi mask
Nitric oxide delivery system (Correct answer)
Oxygen blender
Inhalation nebulizer

Correct answer: Nitric oxide delivery system

Inhaled nitric oxide (iNO) therapy requires a specialized Nitric Oxide Delivery System to precisely administer the gas to neonates. This system ensures accurate dosing, mixing with oxygen, and continuous monitoring of iNO levels, which is crucial for treating conditions like persistent pulmonary hypertension. Other equipment like oxygen blenders or nebulizers are not designed for the specific and precise delivery of nitric oxide.

Question 17: Which parameter primarily determines oxygenation in a neonate on high-frequency oscillatory ventilation (HFOV)?

Mean airway pressure (MAP) (Correct answer)
Inspiratory time
Frequency (Hz)
Amplitude (ΔP)

Correct answer: Mean airway pressure (MAP)

Mean airway pressure (MAP) is the primary determinant of lung recruitment and oxygenation in HFOV, while amplitude controls CO2 elimination.

Question 18: Which of the following is a sign of increased work of breathing in a pediatric patient?

Eupnea
Clear breath sounds
Regular respiratory rate
Subcostal retractions (Correct answer)

Correct answer: Subcostal retractions

Subcostal retractions are a clear sign of increased work of breathing in a pediatric patient. This occurs when the child uses accessory muscles, pulling the skin inward below the rib cage, to overcome airway resistance or decreased lung compliance. It indicates that the respiratory system is working harder than normal to achieve adequate ventilation.

Question 19: Meconium aspiration syndrome (MAS) is characterized by which pathophysiological mechanism?

Pulmonary hypoplasia from oligohydramnios
Surfactant excess with alveolar overdistension
Airway obstruction, surfactant inactivation, and chemical pneumonitis (Correct answer)
Bacterial pneumonia from GBS

Correct answer: Airway obstruction, surfactant inactivation, and chemical pneumonitis

MAS causes a ball-valve airway obstruction, inactivates surfactant, triggers chemical pneumonitis, and often leads to pulmonary hypertension.

Question 20: What is the primary function of a pulse oximeter in neonatal and pediatric care?

To assess oxygen saturation levels (Correct answer)
To monitor heart rate
To measure respiratory rate
To measure blood pressure

Correct answer: To assess oxygen saturation levels

A pulse oximeter is a non-invasive device that measures the oxygen saturation of hemoglobin in arterial blood (SpO2). It is a critical tool in neonatal and pediatric care for continuously monitoring a patient's oxygenation status. This allows clinicians to detect hypoxemia early and guide appropriate oxygen therapy or respiratory support.

Question 21: A 28-week gestational age neonate presents with grunting, nasal flaring, and intercostal retractions. What is the most likely diagnosis?

Congenital diaphragmatic hernia
Meconium aspiration syndrome
Respiratory distress syndrome (RDS) (Correct answer)
Transient tachypnea of the newborn

Correct answer: Respiratory distress syndrome (RDS)

Respiratory distress syndrome (RDS) is highly common in premature neonates, especially those born at 28 weeks gestation, due to insufficient surfactant production in their immature lungs. The presented symptoms of grunting, nasal flaring, and intercostal retractions are classic signs of increased work of breathing characteristic of RDS. Other options are less likely given the specific gestational age and clinical presentation.

Question 22: When using a mechanical ventilator in neonatal care, what is the typical initial setting for positive end-expiratory pressure (PEEP)?

6-8 cm H2O
1-2 cm H2O
9-10 cm H2O
3-5 cm H2O (Correct answer)

Correct answer: 3-5 cm H2O

In neonatal mechanical ventilation, positive end-expiratory pressure (PEEP) is applied to keep the alveoli open at the end of exhalation, improving oxygenation and preventing atelectasis. An initial PEEP setting of 3-5 cm H2O is commonly used to provide adequate alveolar recruitment and maintain lung volume without causing excessive lung distension or compromising venous return.

Question 23: A term neonate has a capillary blood gas drawn from the heel. The results are as follows: pH 7.28, PCO2 52 mm Hg, HCO3 24 mEq/L. How should these results be interpreted?

Normal
Mixed acidosis
Respiratory acidosis (Correct answer)
Metabolic acidosis

Correct answer: Respiratory acidosis

The blood gas results show a pH of 7.28 (acidic) and an elevated PCO2 of 52 mm Hg, while the HCO3 is within the normal range. An elevated PCO2 indicates that the lungs are not effectively eliminating carbon dioxide, leading to a buildup of carbonic acid in the blood. Therefore, the primary problem is respiratory acidosis.

Question 24: To reduce the risk of hypoglycemia in a full-term newborn weighing 2,900 grams, what should the nurse do?

Feed the infant glucose water every 3 hours until breastfeeding well.
Maintain the infant's temperature above 97.7°F. (Correct answer)
Encourage the mother to breastfeed every 4 hours.
Assess blood glucose levels every 3 hours for the first twelve hours.

Correct answer: Maintain the infant's temperature above 97.7°F.

Hypothermia in newborns significantly increases their metabolic rate and oxygen consumption, which rapidly depletes their limited glucose stores. Maintaining a stable core body temperature above 97.7°F (36.5°C) minimizes this metabolic stress and helps conserve glucose, thereby directly reducing the risk of hypoglycemia. Thermal regulation is crucial for glucose homeostasis.

Question 25: When parents of a 23-week neonate refuse resuscitation, which ethical principle is the clinician primarily obligated to respect?

Justice
Non-maleficence
Beneficence
Autonomy (Correct answer)

Correct answer: Autonomy

Parental autonomy — the right of parents to make medical decisions for their child — must be respected within ethical and legal boundaries, including decisions at the limits of viability.

Question 26: A preterm neonate on CPAP at 6 cmH2O has increasing work of breathing and FiO2 requirement >40%. What is the next appropriate intervention?

Increase CPAP to 10 cmH2O
Switch to high-flow nasal cannula
Immediately intubate and place on conventional ventilation
Administer inhaled surfactant via LISA/MIST technique (Correct answer)

Correct answer: Administer inhaled surfactant via LISA/MIST technique

LISA (Less Invasive Surfactant Administration) or MIST (Minimally Invasive Surfactant Therapy) allows surfactant delivery without intubation in neonates failing CPAP.

Question 27: A neonate with persistent pulmonary hypertension (PPHN) fails conventional therapy. Which inhaled medication is indicated?

Nitric oxide (iNO) (Correct answer)
Epoprostenol
Bosentan
Sildenafil

Correct answer: Nitric oxide (iNO)

Inhaled nitric oxide (iNO) is the only FDA-approved inhaled pulmonary vasodilator for neonates with PPHN, selectively reducing pulmonary vascular resistance.

Question 28: A neonate on HFOV has a rising PaCO2. Which ventilator parameter should be increased?

Mean airway pressure (MAP)
Amplitude (ΔP) (Correct answer)
Frequency (Hz)
Inspired oxygen (FiO2)

Correct answer: Amplitude (ΔP)

Amplitude (ΔP) determines tidal volume delivery in HFOV; increasing amplitude improves CO2 elimination and lowers PaCO2.

Question 29: What is the appropriate size endotracheal tube (uncuffed) for a term neonate?

2.5 mm
4.0 mm
2.0 mm
3.0–3.5 mm (Correct answer)

Correct answer: 3.0–3.5 mm

Term neonates (approximately 3–4 kg) are intubated with a 3.0–3.5 mm uncuffed ETT; tube size can be estimated as weight (kg)/3 + 2.5 for neonates.

Neonatal/Pediatric Specialty (NPS) Examination

The NPS Examination, administered by the National Board for Respiratory Care (NBRC), certifies respiratory therapists in specialized neonatal and pediatric respiratory care. It assesses competencies in patient assessment, equipment management, pharmacology, therapeutic procedures, and critical care of neonatal and pediatric patients.

Questions

35 min

Time Limit

70%

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