1
AC PNP PEDIATRIC NURSE PRACTITIONER
ACUTE CARE MELNIC Actual Exam 2026/2027
Complete Questions and Verified Answers with
Detailed Rationales ALL CHAPTERS A+ Grade Pass
Guaranteed - A+ Graded
SECTION 1: ALL CHAPTERS CORE CONTENT (Questions 1-75)
Q1: A 4-year-old child presents to the emergency department with stridor at rest, drooling, and
tripod positioning. The child appears anxious and is leaning forward. Which assessment finding
would be most concerning for impending complete airway obstruction?
A. Temperature of 38.5°C B. Absence of cough C. Muffled voice D. Ability to swallow
secretions
C. Muffled voice. [CORRECT]
Correct Answer: C
Rationale: Muffled voice ("hot potato voice") in a child with stridor, drooling, and tripod
positioning is highly suggestive of epiglottitis, which carries high risk for sudden complete
airway obstruction. This finding indicates significant supraglottic edema that can rapidly
progress to total airway compromise, requiring immediate airway management preparation and
ENT consultation.
Q2: During the primary assessment of a pediatric trauma patient, which intervention takes
priority after establishing unresponsiveness and opening the airway?
A. Obtaining intravenous access B. Assessing breathing and ventilation C. Performing a full
neurological examination D. Applying cervical spine immobilization
B. Assessing breathing and ventilation. [CORRECT]
Correct Answer: B
Rationale: The pediatric assessment triangle and primary survey follow the ABCDE sequence.
After establishing airway patency (A), immediate assessment of breathing (B) including rate,
,2
effort, and oxygenation is critical because hypoxemia is the most common cause of cardiac arrest
in children and rapid deterioration can occur without warning signs.
Q3: A 6-month-old infant with bronchiolitis presents with respiratory rate of 62, nasal flaring,
and SpO2 89% on room air. Which clinical finding indicates the need for immediate escalation to
intensive care?
A. Intercostal retractions B. Apneic episodes lasting 15 seconds C. Poor feeding for 24 hours D.
Capillary refill time of 3 seconds
B. Apneic episodes lasting 15 seconds. [CORRECT]
Correct Answer: B
Rationale: Apneic episodes in infants with bronchiolitis indicate severe disease and high risk for
respiratory failure. Apnea is a well-established indication for pediatric intensive care admission
as it may precede complete respiratory arrest, particularly in infants under 3 months or those with
history of prematurity.
Q4: Which hemodynamic parameter is most reliable for assessing fluid responsiveness in a
pediatric patient with septic shock who is mechanically ventilated?
A. Central venous pressure (CVP) of 5 mmHg B. Pulse pressure variation >13% C. Heart rate
variability D. Mean arterial pressure (MAP) of 55 mmHg
B. Pulse pressure variation >13%. [CORRECT]
Correct Answer: B
Correct Answer: B
Rationale: Pulse pressure variation (PPV) >13% in mechanically ventilated patients is a reliable
dynamic predictor of fluid responsiveness, indicating that the patient will likely increase stroke
volume with fluid administration. Static measures like CVP have poor predictive value for fluid
responsiveness in children.
Q5: A 3-year-old with diabetic ketoacidosis (DKA) has a pH of 7.15, glucose 450 mg/dL, and
altered mental status. Which intervention is contraindicated during the first hour of resuscitation?
A. Normal saline bolus 20 mL/kg B. Insulin infusion at 0.1 units/kg/hour C. Bicarbonate
administration D. Placement of nasogastric tube
C. Bicarbonate administration. [CORRECT]
,3
Correct Answer: C
Rationale: Bicarbonate administration in pediatric DKA is contraindicated as it increases risk of
cerebral edema, the most feared complication of DKA treatment. Current guidelines recommend
against bicarbonate use unless pH is <6.9 with hemodynamic instability, and even then with
extreme caution.
Q6: When interpreting arterial blood gas in a pediatric patient with respiratory failure, which
finding indicates acute-on-chronic respiratory acidosis?
A. pH 7.30, PaCO2 60 mmHg, HCO3 28 mEq/L B. pH 7.20, PaCO2 70 mmHg, HCO3 26
mEq/L C. pH 7.35, PaCO2 50 mmHg, HCO3 32 mEq/L D. pH 7.50, PaCO2 30 mmHg, HCO3
22 mEq/L
A. pH 7.30, PaCO2 60 mmHg, HCO3 28 mEq/L. [CORRECT]
Correct Answer: A
Rationale: Acute-on-chronic respiratory acidosis presents with low pH, elevated PaCO2, and
elevated bicarbonate that is insufficient to normalize the pH. The bicarbonate of 28 represents
metabolic compensation that has occurred over time (chronic), while the pH of 7.30 indicates an
acute worsening of the respiratory component.
Q7: A 10-year-old with status asthmaticus has been receiving continuous albuterol for 2 hours.
Which finding indicates the need for mechanical ventilation?
A. Respiratory rate of 40 breaths/minute B. Silent chest on auscultation with altered mental
status C. PaO2 of 65 mmHg on 100% oxygen D. Accessory muscle use with retractions
B. Silent chest on auscultation with altered mental status. [CORRECT]
Correct Answer: B
Rationale: A silent chest indicates severe airway obstruction with minimal air movement, and
when combined with altered mental status (hypercapnic encephalopathy), represents impending
respiratory arrest. This is an indication for immediate intubation and mechanical ventilation as
the child can no longer maintain adequate ventilation.
Q8: Which medication is first-line for terminating supraventricular tachycardia (SVT) in a
hemodynamically stable 5-year-old?
, 4
A. Adenosine 0.1 mg/kg rapid IV push B. Amiodarone 5 mg/kg IV over 20 minutes C.
Synchronized cardioversion at 0.5 J/kg D. Digoxin loading dose
A. Adenosine 0.1 mg/kg rapid IV push. [CORRECT]
Correct Answer: A
Rationale: Adenosine is the first-line medication for SVT in hemodynamically stable children
due to its rapid onset, short half-life, and high efficacy in terminating reentrant SVT. It must be
administered as a rapid IV push followed immediately by a saline flush to ensure it reaches the
heart before being metabolized.
Q9: A pediatric patient with septic shock has received 60 mL/kg of fluid resuscitation but
remains hypotensive. Which vasoactive agent is most appropriate to initiate?
A. Phenylephrine B. Epinephrine C. Nitroprusside D. Dobutamine
B. Epinephrine. [CORRECT]
Correct Answer: B
Rationale: Epinephrine is the recommended first-line vasoactive agent for pediatric septic shock
refractory to fluid resuscitation, providing both inotropic and vasopressor effects. It supports
cardiac output and vascular tone, addressing the combined cardiogenic and distributive shock
components common in pediatric sepsis.
Q10: Which finding distinguishes compensated from decompensated shock in a pediatric
patient?
A. Heart rate >160 beats/minute B. Capillary refill time >3 seconds C. Hypotension for age D.
Cool extremities
C. Hypotension for age. [CORRECT]
Correct Answer: C
Rationale: Hypotension is a late finding in pediatric shock and indicates decompensation.
Children maintain blood pressure through compensatory mechanisms (tachycardia,
vasoconstriction) until significant blood volume is lost (typically >30%). The presence of
hypotension signals cardiovascular decompensation and requires immediate aggressive
intervention.
AC PNP PEDIATRIC NURSE PRACTITIONER
ACUTE CARE MELNIC Actual Exam 2026/2027
Complete Questions and Verified Answers with
Detailed Rationales ALL CHAPTERS A+ Grade Pass
Guaranteed - A+ Graded
SECTION 1: ALL CHAPTERS CORE CONTENT (Questions 1-75)
Q1: A 4-year-old child presents to the emergency department with stridor at rest, drooling, and
tripod positioning. The child appears anxious and is leaning forward. Which assessment finding
would be most concerning for impending complete airway obstruction?
A. Temperature of 38.5°C B. Absence of cough C. Muffled voice D. Ability to swallow
secretions
C. Muffled voice. [CORRECT]
Correct Answer: C
Rationale: Muffled voice ("hot potato voice") in a child with stridor, drooling, and tripod
positioning is highly suggestive of epiglottitis, which carries high risk for sudden complete
airway obstruction. This finding indicates significant supraglottic edema that can rapidly
progress to total airway compromise, requiring immediate airway management preparation and
ENT consultation.
Q2: During the primary assessment of a pediatric trauma patient, which intervention takes
priority after establishing unresponsiveness and opening the airway?
A. Obtaining intravenous access B. Assessing breathing and ventilation C. Performing a full
neurological examination D. Applying cervical spine immobilization
B. Assessing breathing and ventilation. [CORRECT]
Correct Answer: B
Rationale: The pediatric assessment triangle and primary survey follow the ABCDE sequence.
After establishing airway patency (A), immediate assessment of breathing (B) including rate,
,2
effort, and oxygenation is critical because hypoxemia is the most common cause of cardiac arrest
in children and rapid deterioration can occur without warning signs.
Q3: A 6-month-old infant with bronchiolitis presents with respiratory rate of 62, nasal flaring,
and SpO2 89% on room air. Which clinical finding indicates the need for immediate escalation to
intensive care?
A. Intercostal retractions B. Apneic episodes lasting 15 seconds C. Poor feeding for 24 hours D.
Capillary refill time of 3 seconds
B. Apneic episodes lasting 15 seconds. [CORRECT]
Correct Answer: B
Rationale: Apneic episodes in infants with bronchiolitis indicate severe disease and high risk for
respiratory failure. Apnea is a well-established indication for pediatric intensive care admission
as it may precede complete respiratory arrest, particularly in infants under 3 months or those with
history of prematurity.
Q4: Which hemodynamic parameter is most reliable for assessing fluid responsiveness in a
pediatric patient with septic shock who is mechanically ventilated?
A. Central venous pressure (CVP) of 5 mmHg B. Pulse pressure variation >13% C. Heart rate
variability D. Mean arterial pressure (MAP) of 55 mmHg
B. Pulse pressure variation >13%. [CORRECT]
Correct Answer: B
Correct Answer: B
Rationale: Pulse pressure variation (PPV) >13% in mechanically ventilated patients is a reliable
dynamic predictor of fluid responsiveness, indicating that the patient will likely increase stroke
volume with fluid administration. Static measures like CVP have poor predictive value for fluid
responsiveness in children.
Q5: A 3-year-old with diabetic ketoacidosis (DKA) has a pH of 7.15, glucose 450 mg/dL, and
altered mental status. Which intervention is contraindicated during the first hour of resuscitation?
A. Normal saline bolus 20 mL/kg B. Insulin infusion at 0.1 units/kg/hour C. Bicarbonate
administration D. Placement of nasogastric tube
C. Bicarbonate administration. [CORRECT]
,3
Correct Answer: C
Rationale: Bicarbonate administration in pediatric DKA is contraindicated as it increases risk of
cerebral edema, the most feared complication of DKA treatment. Current guidelines recommend
against bicarbonate use unless pH is <6.9 with hemodynamic instability, and even then with
extreme caution.
Q6: When interpreting arterial blood gas in a pediatric patient with respiratory failure, which
finding indicates acute-on-chronic respiratory acidosis?
A. pH 7.30, PaCO2 60 mmHg, HCO3 28 mEq/L B. pH 7.20, PaCO2 70 mmHg, HCO3 26
mEq/L C. pH 7.35, PaCO2 50 mmHg, HCO3 32 mEq/L D. pH 7.50, PaCO2 30 mmHg, HCO3
22 mEq/L
A. pH 7.30, PaCO2 60 mmHg, HCO3 28 mEq/L. [CORRECT]
Correct Answer: A
Rationale: Acute-on-chronic respiratory acidosis presents with low pH, elevated PaCO2, and
elevated bicarbonate that is insufficient to normalize the pH. The bicarbonate of 28 represents
metabolic compensation that has occurred over time (chronic), while the pH of 7.30 indicates an
acute worsening of the respiratory component.
Q7: A 10-year-old with status asthmaticus has been receiving continuous albuterol for 2 hours.
Which finding indicates the need for mechanical ventilation?
A. Respiratory rate of 40 breaths/minute B. Silent chest on auscultation with altered mental
status C. PaO2 of 65 mmHg on 100% oxygen D. Accessory muscle use with retractions
B. Silent chest on auscultation with altered mental status. [CORRECT]
Correct Answer: B
Rationale: A silent chest indicates severe airway obstruction with minimal air movement, and
when combined with altered mental status (hypercapnic encephalopathy), represents impending
respiratory arrest. This is an indication for immediate intubation and mechanical ventilation as
the child can no longer maintain adequate ventilation.
Q8: Which medication is first-line for terminating supraventricular tachycardia (SVT) in a
hemodynamically stable 5-year-old?
, 4
A. Adenosine 0.1 mg/kg rapid IV push B. Amiodarone 5 mg/kg IV over 20 minutes C.
Synchronized cardioversion at 0.5 J/kg D. Digoxin loading dose
A. Adenosine 0.1 mg/kg rapid IV push. [CORRECT]
Correct Answer: A
Rationale: Adenosine is the first-line medication for SVT in hemodynamically stable children
due to its rapid onset, short half-life, and high efficacy in terminating reentrant SVT. It must be
administered as a rapid IV push followed immediately by a saline flush to ensure it reaches the
heart before being metabolized.
Q9: A pediatric patient with septic shock has received 60 mL/kg of fluid resuscitation but
remains hypotensive. Which vasoactive agent is most appropriate to initiate?
A. Phenylephrine B. Epinephrine C. Nitroprusside D. Dobutamine
B. Epinephrine. [CORRECT]
Correct Answer: B
Rationale: Epinephrine is the recommended first-line vasoactive agent for pediatric septic shock
refractory to fluid resuscitation, providing both inotropic and vasopressor effects. It supports
cardiac output and vascular tone, addressing the combined cardiogenic and distributive shock
components common in pediatric sepsis.
Q10: Which finding distinguishes compensated from decompensated shock in a pediatric
patient?
A. Heart rate >160 beats/minute B. Capillary refill time >3 seconds C. Hypotension for age D.
Cool extremities
C. Hypotension for age. [CORRECT]
Correct Answer: C
Rationale: Hypotension is a late finding in pediatric shock and indicates decompensation.
Children maintain blood pressure through compensatory mechanisms (tachycardia,
vasoconstriction) until significant blood volume is lost (typically >30%). The presence of
hypotension signals cardiovascular decompensation and requires immediate aggressive
intervention.
