PALS PRACTICE EXAM MASTER BANK
2026 HIGH-YIELD Q&AS WITH DETAILED
RATIONALES
This premium question PALS practice exam study bank
delivers high-yield, scenario-based multiple choice
questions designed to mimic the official American Heart
Association provider test. Every item is immediately
followed by a clear, direct answer and a comprehensive,
bold-italicized scientific rationale to ensure maximum
conceptual retention. It is professionally formatted and
optimized for students seeking top-tier test preparation,
making it a highly profitable resource for digital document
marketplaces.
1. A 4-year-old child is brought to the emergency
department with a history of vomiting and diarrhea. The
child is lethargic, has a heart rate of 165 bpm, muffled
heart sounds, and a capillary refill time of 4 seconds.
Which type of shock should you suspect first?
A) Cardiogenic shock
B) Hypovolemic shock
C) Distributive shock
D) Obstructive shock
Answer: B
Rationale: Hypovolemic shock is the most common type
, of shock in children and is frequently caused by severe
dehydration due to vomiting and diarrhea. Symptoms
include tachycardia, delayed capillary refill, and
lethargy.
2. You are treating an infant with a heart rate of 220 bpm.
The ECG shows a narrow QRS complex with no
discernible P waves. The infant is hemodynamically
stable. What is the initial recommended intervention?
A) Immediate synchronized cardioversion
B) Administration of IV amiodarone
C) Vagal maneuvers (e.g., ice bag to the face)
D) Immediate uncuffed endotracheal intubation
Answer: C
Rationale: For a stable infant with suspected
Supraventricular Tachycardia (SVT)—indicated by a
narrow QRS and HR >220 bpm—vagal maneuvers
should be attempted first while preparing for
pharmacological intervention.
3. What is the correct depth of chest compressions for an
infant during cardiopulmonary resuscitation (CPR)?
A) At least 2 inches (5 cm)
B) About 1.5 inches (4 cm)
C) At least 2.5 inches (6 cm)
D) One-third to one-half the depth of the chest
Answer: B
Rationale: The AHA guidelines state that for infants
(less than 1 year of age), the compression depth should
be approximately 1.5 inches (4 cm), which corresponds
, to roughly one-third of the anterior-posterior diameter
of the chest.
4. A 6-year-old child is in cardiac arrest. The rhythm on
the monitor shows ventricular fibrillation (VF). You have
delivered the first shock. What should you do next?
A) Check the pulse and rhythm immediately
B) Administer 1 mg of Epinephrine IV
C) Resume CPR immediately starting with chest
compressions
D) Prepare for immediate endotracheal intubation
Answer: C
Rationale: Minimizing interruptions in chest
compressions is critical. Immediately after delivering a
shock, CPR should be resumed for 2 minutes before
checking the rhythm or pulse.
5. Which of the following is a sign of upper airway
obstruction in a pediatric patient?
A) Expiratory wheezing
B) Grunting at the end of expiration
C) Inspiratory stridor
D) Decreased breath sounds at the bases
Answer: C
Rationale: Stridor is a harsh, high-pitched sound heard
primarily during inspiration and indicates an upper
airway obstruction (e.g., croup or foreign body).
Wheezing typically indicates lower airway issues.
6. What is the standard dose of IV/IO Epinephrine during
pediatric cardiac arrest?
A) 0.1 mg/kg of a 1:10,000 solution
, B) 0.01 mg/kg of a 1:10,000 solution
C) 0.1 mg/kg of a 1:1,000 solution
D) 0.01 mg/kg of a 1:1,000 solution
Answer: B
Rationale: The correct pediatric dose for Epinephrine
in cardiac arrest is 0.01 mg/kg (0.1 mL/kg of the 0.1
mg/mL or 1:10,000 concentration) repeated every 3 to 5
minutes.
7. A 2-year-old child is presenting with severe respiratory
distress, a barking cough, and stridor at rest. Which
medication is most appropriate for immediate
nebulization?
A) Albuterol
B) Lymecycline
C) Racemic Epinephrine
D) Salmeterol
Answer: C
Rationale: A barking cough and inspiratory stridor are
classic signs of croup (laryngotracheobronchitis).
Nebulized racemic epinephrine reduces airway edema
and provides rapid symptomatic relief.
8. During 2-rescuer CPR on an 8-month-old infant, what is
the correct compression-to-ventilation ratio?
A) 30:2
B) 15:2
C) 5:1
D) 15:1
Answer: B
Rationale: For pediatric CPR (infants and children up to
2026 HIGH-YIELD Q&AS WITH DETAILED
RATIONALES
This premium question PALS practice exam study bank
delivers high-yield, scenario-based multiple choice
questions designed to mimic the official American Heart
Association provider test. Every item is immediately
followed by a clear, direct answer and a comprehensive,
bold-italicized scientific rationale to ensure maximum
conceptual retention. It is professionally formatted and
optimized for students seeking top-tier test preparation,
making it a highly profitable resource for digital document
marketplaces.
1. A 4-year-old child is brought to the emergency
department with a history of vomiting and diarrhea. The
child is lethargic, has a heart rate of 165 bpm, muffled
heart sounds, and a capillary refill time of 4 seconds.
Which type of shock should you suspect first?
A) Cardiogenic shock
B) Hypovolemic shock
C) Distributive shock
D) Obstructive shock
Answer: B
Rationale: Hypovolemic shock is the most common type
, of shock in children and is frequently caused by severe
dehydration due to vomiting and diarrhea. Symptoms
include tachycardia, delayed capillary refill, and
lethargy.
2. You are treating an infant with a heart rate of 220 bpm.
The ECG shows a narrow QRS complex with no
discernible P waves. The infant is hemodynamically
stable. What is the initial recommended intervention?
A) Immediate synchronized cardioversion
B) Administration of IV amiodarone
C) Vagal maneuvers (e.g., ice bag to the face)
D) Immediate uncuffed endotracheal intubation
Answer: C
Rationale: For a stable infant with suspected
Supraventricular Tachycardia (SVT)—indicated by a
narrow QRS and HR >220 bpm—vagal maneuvers
should be attempted first while preparing for
pharmacological intervention.
3. What is the correct depth of chest compressions for an
infant during cardiopulmonary resuscitation (CPR)?
A) At least 2 inches (5 cm)
B) About 1.5 inches (4 cm)
C) At least 2.5 inches (6 cm)
D) One-third to one-half the depth of the chest
Answer: B
Rationale: The AHA guidelines state that for infants
(less than 1 year of age), the compression depth should
be approximately 1.5 inches (4 cm), which corresponds
, to roughly one-third of the anterior-posterior diameter
of the chest.
4. A 6-year-old child is in cardiac arrest. The rhythm on
the monitor shows ventricular fibrillation (VF). You have
delivered the first shock. What should you do next?
A) Check the pulse and rhythm immediately
B) Administer 1 mg of Epinephrine IV
C) Resume CPR immediately starting with chest
compressions
D) Prepare for immediate endotracheal intubation
Answer: C
Rationale: Minimizing interruptions in chest
compressions is critical. Immediately after delivering a
shock, CPR should be resumed for 2 minutes before
checking the rhythm or pulse.
5. Which of the following is a sign of upper airway
obstruction in a pediatric patient?
A) Expiratory wheezing
B) Grunting at the end of expiration
C) Inspiratory stridor
D) Decreased breath sounds at the bases
Answer: C
Rationale: Stridor is a harsh, high-pitched sound heard
primarily during inspiration and indicates an upper
airway obstruction (e.g., croup or foreign body).
Wheezing typically indicates lower airway issues.
6. What is the standard dose of IV/IO Epinephrine during
pediatric cardiac arrest?
A) 0.1 mg/kg of a 1:10,000 solution
, B) 0.01 mg/kg of a 1:10,000 solution
C) 0.1 mg/kg of a 1:1,000 solution
D) 0.01 mg/kg of a 1:1,000 solution
Answer: B
Rationale: The correct pediatric dose for Epinephrine
in cardiac arrest is 0.01 mg/kg (0.1 mL/kg of the 0.1
mg/mL or 1:10,000 concentration) repeated every 3 to 5
minutes.
7. A 2-year-old child is presenting with severe respiratory
distress, a barking cough, and stridor at rest. Which
medication is most appropriate for immediate
nebulization?
A) Albuterol
B) Lymecycline
C) Racemic Epinephrine
D) Salmeterol
Answer: C
Rationale: A barking cough and inspiratory stridor are
classic signs of croup (laryngotracheobronchitis).
Nebulized racemic epinephrine reduces airway edema
and provides rapid symptomatic relief.
8. During 2-rescuer CPR on an 8-month-old infant, what is
the correct compression-to-ventilation ratio?
A) 30:2
B) 15:2
C) 5:1
D) 15:1
Answer: B
Rationale: For pediatric CPR (infants and children up to
