EPALS EXAM COMPLETE STUDY GUIDE 2026
WITH VERIFIED QUESTIONS AND CORRECT
ANSWERS | PEDIATRIC ADVANCED LIFE
SUPPORT CERTIFICATION PREP DETAILED
RATIONALES GRADE A+
EPALS EXAM COMPLETE STUDY GUIDE 2026
Pediatric Advanced Life Support Certification Prep | 200 Verified Questions |
Grade A+
• This guide contains 200 high-yield PALS exam questions with verified correct
answers, detailed EXPERT RATIONALE, and full A–E multiple choice options —
designed to simulate real certification exam conditions.
• Study tip: Read each question carefully, select your answer mentally before
checking the highlighted correct option, then reinforce your understanding using
the EXPERT RATIONALE provided below each answer.
1. A 3-year-old presents with increased work of breathing, nasal flaring, and
subcostal retractions. SpO₂ is 91% on room air. What is the MOST appropriate
initial intervention?
A. Immediate endotracheal intubation
B. Chest X-ray to determine cause
C. Administer supplemental oxygen via non-rebreather mask
D. Begin bag-mask ventilation
E. Obtain IV access and give normal saline bolus
C. Administer supplemental oxygen via non-rebreather mask
EXPERT RATIONALE: The child is showing signs of respiratory distress but not
failure. The first step in managing respiratory distress is supplemental oxygen. A
non-rebreather mask delivers up to 90–95% FiO₂ and is appropriate before
escalating to invasive interventions.
,2. Which of the following BEST defines respiratory failure in a pediatric
patient?
A. Respiratory rate above 30 breaths per minute
B. Inability of the respiratory system to maintain adequate oxygenation and/or
ventilation
C. SpO₂ below 95% on room air
D. Presence of nasal flaring and grunting
E. Use of accessory muscles during breathing
B. Inability of the respiratory system to maintain adequate oxygenation
and/or ventilation
EXPERT RATIONALE: Respiratory failure is defined as the inability to maintain
adequate gas exchange — oxygenation and/or ventilation — regardless of effort. It
is a physiologic definition, not based solely on rate or SpO₂ alone.
3. A child with stridor at rest, drooling, and a preference for the tripod
position most likely has:
A. Croup
B. Asthma
C. Bronchiolitis
D. Epiglottitis
E. Foreign body aspiration
D. Epiglottitis
EXPERT RATIONALE: Drooling, stridor, tripod positioning, and toxic appearance
are classic signs of epiglottitis — a life-threatening supraglottic infection. Avoid
agitating the child and prepare for immediate airway management by a skilled
provider.
,4. What is the MOST common cause of cardiac arrest in children?
A. Ventricular fibrillation
B. Primary cardiac dysrhythmia
C. Respiratory failure or shock leading to hypoxic arrest
D. Congenital heart disease
E. Electrolyte imbalance
C. Respiratory failure or shock leading to hypoxic arrest
EXPERT RATIONALE: Unlike adults, pediatric cardiac arrest is most often
secondary — caused by progressive respiratory failure or shock that leads to
hypoxia and eventual cardiac arrest. Early recognition and intervention can prevent
arrest.
5. A 6-month-old presents with expiratory wheezing, mild retractions, and
SpO₂ of 93%. The child had rhinorrhea for 3 days. What is the MOST likely
diagnosis?
A. Asthma
B. Pneumonia
C. Croup
D. Bronchiolitis
E. Foreign body aspiration
D. Bronchiolitis
EXPERT RATIONALE: Bronchiolitis is most common in infants under 12 months,
typically caused by RSV. It presents with upper respiratory prodrome followed by
wheezing, crackles, and increased work of breathing. Management is mainly
supportive.
, 6. Which of the following is a sign of SEVERE respiratory distress in a child?
A. Respiratory rate of 25 in a 2-year-old
B. Mild intercostal retractions
C. Head bobbing and see-saw respirations
D. SpO₂ of 95% on room air
E. Mild nasal flaring on exertion
C. Head bobbing and see-saw respirations
EXPERT RATIONALE: Head bobbing and see-saw (paradoxical) respirations are
signs of severe respiratory distress indicating impending failure. They suggest
significant work of breathing and loss of coordinated respiratory muscle effort.
7. When using a bag-mask device, what is the appropriate tidal volume to
deliver to a child?
A. 15 mL/kg
B. 5 mL/kg
C. 10–12 mL/kg
D. Enough to see visible chest rise
E. 20 mL/kg
D. Enough to see visible chest rise
EXPERT RATIONALE: PALS guidelines recommend delivering just enough
volume to produce visible chest rise — approximately 6–8 mL/kg. Overventilation
increases intrathoracic pressure, reduces venous return, and can worsen
outcomes.
WITH VERIFIED QUESTIONS AND CORRECT
ANSWERS | PEDIATRIC ADVANCED LIFE
SUPPORT CERTIFICATION PREP DETAILED
RATIONALES GRADE A+
EPALS EXAM COMPLETE STUDY GUIDE 2026
Pediatric Advanced Life Support Certification Prep | 200 Verified Questions |
Grade A+
• This guide contains 200 high-yield PALS exam questions with verified correct
answers, detailed EXPERT RATIONALE, and full A–E multiple choice options —
designed to simulate real certification exam conditions.
• Study tip: Read each question carefully, select your answer mentally before
checking the highlighted correct option, then reinforce your understanding using
the EXPERT RATIONALE provided below each answer.
1. A 3-year-old presents with increased work of breathing, nasal flaring, and
subcostal retractions. SpO₂ is 91% on room air. What is the MOST appropriate
initial intervention?
A. Immediate endotracheal intubation
B. Chest X-ray to determine cause
C. Administer supplemental oxygen via non-rebreather mask
D. Begin bag-mask ventilation
E. Obtain IV access and give normal saline bolus
C. Administer supplemental oxygen via non-rebreather mask
EXPERT RATIONALE: The child is showing signs of respiratory distress but not
failure. The first step in managing respiratory distress is supplemental oxygen. A
non-rebreather mask delivers up to 90–95% FiO₂ and is appropriate before
escalating to invasive interventions.
,2. Which of the following BEST defines respiratory failure in a pediatric
patient?
A. Respiratory rate above 30 breaths per minute
B. Inability of the respiratory system to maintain adequate oxygenation and/or
ventilation
C. SpO₂ below 95% on room air
D. Presence of nasal flaring and grunting
E. Use of accessory muscles during breathing
B. Inability of the respiratory system to maintain adequate oxygenation
and/or ventilation
EXPERT RATIONALE: Respiratory failure is defined as the inability to maintain
adequate gas exchange — oxygenation and/or ventilation — regardless of effort. It
is a physiologic definition, not based solely on rate or SpO₂ alone.
3. A child with stridor at rest, drooling, and a preference for the tripod
position most likely has:
A. Croup
B. Asthma
C. Bronchiolitis
D. Epiglottitis
E. Foreign body aspiration
D. Epiglottitis
EXPERT RATIONALE: Drooling, stridor, tripod positioning, and toxic appearance
are classic signs of epiglottitis — a life-threatening supraglottic infection. Avoid
agitating the child and prepare for immediate airway management by a skilled
provider.
,4. What is the MOST common cause of cardiac arrest in children?
A. Ventricular fibrillation
B. Primary cardiac dysrhythmia
C. Respiratory failure or shock leading to hypoxic arrest
D. Congenital heart disease
E. Electrolyte imbalance
C. Respiratory failure or shock leading to hypoxic arrest
EXPERT RATIONALE: Unlike adults, pediatric cardiac arrest is most often
secondary — caused by progressive respiratory failure or shock that leads to
hypoxia and eventual cardiac arrest. Early recognition and intervention can prevent
arrest.
5. A 6-month-old presents with expiratory wheezing, mild retractions, and
SpO₂ of 93%. The child had rhinorrhea for 3 days. What is the MOST likely
diagnosis?
A. Asthma
B. Pneumonia
C. Croup
D. Bronchiolitis
E. Foreign body aspiration
D. Bronchiolitis
EXPERT RATIONALE: Bronchiolitis is most common in infants under 12 months,
typically caused by RSV. It presents with upper respiratory prodrome followed by
wheezing, crackles, and increased work of breathing. Management is mainly
supportive.
, 6. Which of the following is a sign of SEVERE respiratory distress in a child?
A. Respiratory rate of 25 in a 2-year-old
B. Mild intercostal retractions
C. Head bobbing and see-saw respirations
D. SpO₂ of 95% on room air
E. Mild nasal flaring on exertion
C. Head bobbing and see-saw respirations
EXPERT RATIONALE: Head bobbing and see-saw (paradoxical) respirations are
signs of severe respiratory distress indicating impending failure. They suggest
significant work of breathing and loss of coordinated respiratory muscle effort.
7. When using a bag-mask device, what is the appropriate tidal volume to
deliver to a child?
A. 15 mL/kg
B. 5 mL/kg
C. 10–12 mL/kg
D. Enough to see visible chest rise
E. 20 mL/kg
D. Enough to see visible chest rise
EXPERT RATIONALE: PALS guidelines recommend delivering just enough
volume to produce visible chest rise — approximately 6–8 mL/kg. Overventilation
increases intrathoracic pressure, reduces venous return, and can worsen
outcomes.
