PALS POST TEST 2026 COMPREHENSIVE
EXAM PRACTICE QUESTIONS & ANSWERS |
DETAILED EXPLANATIONS & RATIONALES |
PEDIATRIC ADVANCED LIFE SUPPORT
CERTIFICATION REVIEW GUIDE | HIGH-YIELD
AHA-ALIGNED PREP PDF
PALS POST TEST 2026 — COMPREHENSIVE EXAM PRACTICE
PEDIATRIC ADVANCED LIFE SUPPORT CERTIFICATION REVIEW GUIDE
• What This Is: A 200-question AHA-aligned PALS practice exam with five-option
MCQs, bold correct answers, and detailed EXPERT RATIONALE designed to mirror
the real certification test format and difficulty.
• How to Study: Work through each question independently before checking the
answer — cover the correct answer and EXPERT RATIONALE first, commit to a
choice, then reveal; review any EXPERT RATIONALE you found surprising and
revisit those topics in your AHA PALS Provider Manual.
QUESTION 1
A 6-month-old infant has a heart rate of 220 bpm, is lethargic, has poor
perfusion, and a blood pressure of 60/40 mmHg. The cardiac monitor shows a
narrow complex tachycardia. What is the MOST appropriate immediate
intervention?
A. Administer adenosine 0.1 mg/kg IV
B. Perform immediate defibrillation at 2 J/kg
C. Administer amiodarone 5 mg/kg IV
D. Perform immediate synchronized cardioversion at 1 J/kg
E. Administer adenosine 0.2 mg/kg IV
, CORRECT ANSWER: D. Perform immediate synchronized cardioversion at 1
J/kg
EXPERT RATIONALE: This infant has SVT with hemodynamic instability
(hypotension, lethargy, poor perfusion). Per AHA PALS guidelines, unstable SVT
should be treated with immediate synchronized cardioversion starting at 0.5–1 J/kg.
Adenosine may be used for stable SVT, but instability requires cardioversion first.
Defibrillation is for pulseless rhythms, not organized tachycardia.
QUESTION 2
A 3-year-old presents with severe respiratory distress, inspiratory stridor, and
a barking cough. He has mild retractions and is maintaining oxygen
saturation at 94%. What is the MOST appropriate initial treatment?
A. Immediate intubation
B. Heliox administration
C. Nebulized racemic epinephrine
D. Oral dexamethasone 0.6 mg/kg
E. IV magnesium sulfate
CORRECT ANSWER: D. Oral dexamethasone 0.6 mg/kg
EXPERT RATIONALE: This presentation is classic croup
(laryngotracheobronchitis) — barking cough, stridor, and mild retractions.
Dexamethasone 0.6 mg/kg orally or IM is first-line treatment. Racemic epinephrine
is used for moderate-to-severe croup. Intubation is reserved for impending
respiratory failure. Heliox may be used as an adjunct but is not first-line.
QUESTION 3
During CPR on a 5-year-old, what is the recommended compression-to-
ventilation ratio when two rescuers are present?
A. 30:2
,B. 15:1
C. 15:2
D. 30:1
E. 5:1
CORRECT ANSWER: C. 15:2
EXPERT RATIONALE: AHA PALS guidelines recommend a 15:2 compression-to-
ventilation ratio for two-rescuer pediatric CPR. The 30:2 ratio applies to single-
rescuer CPR for children and adult CPR. The goal is to minimize interruptions while
providing adequate ventilation for pediatric patients, who often arrest due to
respiratory causes.
QUESTION 4
A 7-year-old child is found pulseless and apneic. The monitor shows
ventricular fibrillation. What is the correct initial defibrillation dose?
A. 1 J/kg
B. 4 J/kg
C. 2 J/kg
D. 360 J
E. 200 J
CORRECT ANSWER: C. 2 J/kg
EXPERT RATIONALE: Per AHA PALS guidelines, the initial defibrillation dose for
VF or pulseless VT in children is 2 J/kg. Subsequent doses are 4 J/kg, and further
doses may go up to 10 J/kg or the adult maximum dose. This weight-based dosing
avoids the myocardial damage associated with adult fixed doses.
QUESTION 5
, A 10-year-old with asthma presents with severe respiratory distress,
accessory muscle use, and an SpO₂ of 88% despite initial bronchodilator
therapy. The child is tiring. What is the NEXT best step?
A. Administer IV magnesium sulfate 25–50 mg/kg
B. Begin non-invasive positive pressure ventilation (NIPPV)
C. Administer heliox
D. Prepare for immediate intubation
E. Give a second dose of albuterol
CORRECT ANSWER: A. Administer IV magnesium sulfate 25–50 mg/kg
EXPERT RATIONALE: In severe asthma refractory to bronchodilators, IV
magnesium sulfate (25–50 mg/kg, max 2 g) is recommended as it causes bronchial
smooth muscle relaxation. NIPPV and heliox are useful adjuncts but not the next
priority. Intubation is a last resort due to the risk of air trapping. Repeated albuterol
alone is insufficient at this stage.
QUESTION 6
What is the MOST common cause of cardiac arrest in children?
A. Primary ventricular fibrillation
B. Respiratory failure leading to hypoxia
C. Primary cardiogenic shock
D. Congenital heart defects
E. Hypovolemia from trauma
CORRECT ANSWER: B. Respiratory failure leading to hypoxia
EXPERT RATIONALE: Unlike adults, cardiac arrest in children is most commonly
caused by respiratory failure or shock progressing to hypoxia, not primary cardiac
events. This is why high-quality oxygenation and ventilation are especially critical in
EXAM PRACTICE QUESTIONS & ANSWERS |
DETAILED EXPLANATIONS & RATIONALES |
PEDIATRIC ADVANCED LIFE SUPPORT
CERTIFICATION REVIEW GUIDE | HIGH-YIELD
AHA-ALIGNED PREP PDF
PALS POST TEST 2026 — COMPREHENSIVE EXAM PRACTICE
PEDIATRIC ADVANCED LIFE SUPPORT CERTIFICATION REVIEW GUIDE
• What This Is: A 200-question AHA-aligned PALS practice exam with five-option
MCQs, bold correct answers, and detailed EXPERT RATIONALE designed to mirror
the real certification test format and difficulty.
• How to Study: Work through each question independently before checking the
answer — cover the correct answer and EXPERT RATIONALE first, commit to a
choice, then reveal; review any EXPERT RATIONALE you found surprising and
revisit those topics in your AHA PALS Provider Manual.
QUESTION 1
A 6-month-old infant has a heart rate of 220 bpm, is lethargic, has poor
perfusion, and a blood pressure of 60/40 mmHg. The cardiac monitor shows a
narrow complex tachycardia. What is the MOST appropriate immediate
intervention?
A. Administer adenosine 0.1 mg/kg IV
B. Perform immediate defibrillation at 2 J/kg
C. Administer amiodarone 5 mg/kg IV
D. Perform immediate synchronized cardioversion at 1 J/kg
E. Administer adenosine 0.2 mg/kg IV
, CORRECT ANSWER: D. Perform immediate synchronized cardioversion at 1
J/kg
EXPERT RATIONALE: This infant has SVT with hemodynamic instability
(hypotension, lethargy, poor perfusion). Per AHA PALS guidelines, unstable SVT
should be treated with immediate synchronized cardioversion starting at 0.5–1 J/kg.
Adenosine may be used for stable SVT, but instability requires cardioversion first.
Defibrillation is for pulseless rhythms, not organized tachycardia.
QUESTION 2
A 3-year-old presents with severe respiratory distress, inspiratory stridor, and
a barking cough. He has mild retractions and is maintaining oxygen
saturation at 94%. What is the MOST appropriate initial treatment?
A. Immediate intubation
B. Heliox administration
C. Nebulized racemic epinephrine
D. Oral dexamethasone 0.6 mg/kg
E. IV magnesium sulfate
CORRECT ANSWER: D. Oral dexamethasone 0.6 mg/kg
EXPERT RATIONALE: This presentation is classic croup
(laryngotracheobronchitis) — barking cough, stridor, and mild retractions.
Dexamethasone 0.6 mg/kg orally or IM is first-line treatment. Racemic epinephrine
is used for moderate-to-severe croup. Intubation is reserved for impending
respiratory failure. Heliox may be used as an adjunct but is not first-line.
QUESTION 3
During CPR on a 5-year-old, what is the recommended compression-to-
ventilation ratio when two rescuers are present?
A. 30:2
,B. 15:1
C. 15:2
D. 30:1
E. 5:1
CORRECT ANSWER: C. 15:2
EXPERT RATIONALE: AHA PALS guidelines recommend a 15:2 compression-to-
ventilation ratio for two-rescuer pediatric CPR. The 30:2 ratio applies to single-
rescuer CPR for children and adult CPR. The goal is to minimize interruptions while
providing adequate ventilation for pediatric patients, who often arrest due to
respiratory causes.
QUESTION 4
A 7-year-old child is found pulseless and apneic. The monitor shows
ventricular fibrillation. What is the correct initial defibrillation dose?
A. 1 J/kg
B. 4 J/kg
C. 2 J/kg
D. 360 J
E. 200 J
CORRECT ANSWER: C. 2 J/kg
EXPERT RATIONALE: Per AHA PALS guidelines, the initial defibrillation dose for
VF or pulseless VT in children is 2 J/kg. Subsequent doses are 4 J/kg, and further
doses may go up to 10 J/kg or the adult maximum dose. This weight-based dosing
avoids the myocardial damage associated with adult fixed doses.
QUESTION 5
, A 10-year-old with asthma presents with severe respiratory distress,
accessory muscle use, and an SpO₂ of 88% despite initial bronchodilator
therapy. The child is tiring. What is the NEXT best step?
A. Administer IV magnesium sulfate 25–50 mg/kg
B. Begin non-invasive positive pressure ventilation (NIPPV)
C. Administer heliox
D. Prepare for immediate intubation
E. Give a second dose of albuterol
CORRECT ANSWER: A. Administer IV magnesium sulfate 25–50 mg/kg
EXPERT RATIONALE: In severe asthma refractory to bronchodilators, IV
magnesium sulfate (25–50 mg/kg, max 2 g) is recommended as it causes bronchial
smooth muscle relaxation. NIPPV and heliox are useful adjuncts but not the next
priority. Intubation is a last resort due to the risk of air trapping. Repeated albuterol
alone is insufficient at this stage.
QUESTION 6
What is the MOST common cause of cardiac arrest in children?
A. Primary ventricular fibrillation
B. Respiratory failure leading to hypoxia
C. Primary cardiogenic shock
D. Congenital heart defects
E. Hypovolemia from trauma
CORRECT ANSWER: B. Respiratory failure leading to hypoxia
EXPERT RATIONALE: Unlike adults, cardiac arrest in children is most commonly
caused by respiratory failure or shock progressing to hypoxia, not primary cardiac
events. This is why high-quality oxygenation and ventilation are especially critical in
