2020 Pals Exam A / AHA PALS Exam Questions & Answers 2025
/ 2026 (Verified 100% Correct) - 250 Questions and Answers
Already Graded A+ Premium Exam Tested And Verified
Subject Area Pediatric Advanced Life Support (PALS)
Description This rigorous examination covers the latest AHA PALS guidelines, including
pediatric assessment, respiratory and circulatory emergencies, arrhythmia
recognition, and post-resuscitation care. It is designed for advanced healthcare
professionals seeking certification or recertification at the highest standard.
Expected Grade A+
Total Questions 250
Duration 3 hours
Learning Outcomes 1. Differentiate between compensated and hypotensive shock using subtle clinical
indicators.
2. Apply evidence-based algorithms for bradycardia, tachycardia, and cardiac
arrest in pediatric patients.
3. Interpret arterial blood gas and capnography data to guide ventilation strategies.
4. Evaluate post-cardiac arrest interventions to optimize neurologic outcomes.
Accreditation This exam meets the rigorous standards of Ivy League and R1 research
universities, reflecting the most current AHA PALS guidelines (2025/2026).
Page 1
,1. During a pediatric resuscitation, the team leader notes a narrow QRS tachycardia
with no pulse. After defibrillation, the rhythm converts to asystole. Which sequence
of actions is most appropriate?
A. Continue CPR for 2 minutes, then administer epinephrine 0.01 mg/kg IV/IO.
B. Administer amiodarone 5 mg/kg IV/IO immediately, then resume CPR.
C. Perform synchronized cardioversion at 1 J/kg, then check rhythm.
D. Administer adenosine 0.1 mg/kg IV/IO rapid push, then resume CPR.
Answer: A. Continue CPR for 2 minutes, then administer epinephrine 0.01 mg/kg
IV/IO.
After defibrillation for a shockable rhythm, the rhythm becomes asystole
(non-shockable). The algorithm for asystole/PEA is high-quality CPR and epinephrine
every 3-5 minutes. Amiodarone is used for shockable rhythms only. Synchronized
cardioversion is for stable tachyarrhythmias with a pulse. Adenosine is for stable
supraventricular tachycardia.
2. A patient in septic shock demonstrates hypotension despite fluid resuscitation.
Point-of-care ultrasound reveals a hyperdynamic left ventricle with a low
velocity-time integral. Which vasoactive agent is most appropriate?
A. Norepinephrine
B. Dobutamine
C. Epinephrine
D. Vasopressin
Answer: A. Norepinephrine
The findings suggest distributive shock with low systemic vascular resistance
(hyperdynamic LV, low VTI). Norepinephrine is the first-line vasopressor to increase
SVR. Dobutamine is for cardiogenic shock with low contractility. Epinephrine may be
used but has more chronotropic effects. Vasopressin is second-line.
Page 2
,3. A patient with respiratory distress has a heart rate of 200/min, blood pressure
75/40 mmHg, and capnography showing a sudden decrease in end-tidal CO2 from 40
to 25 mmHg. What is the most likely cause?
A. Increased cardiac output
B. Pulmonary embolism
C. Hyperventilation
D. Improper endotracheal tube placement
Answer: B. Pulmonary embolism
A sudden drop in ETCO2 with hypotension and tachycardia in a patient with
respiratory distress suggests a pulmonary embolism (increased dead space). Increased
cardiac output would raise ETCO2. Hyperventilation would decrease ETCO2
gradually. Improper tube placement would show absent or very low ETCO2.
4. Which of the following best describes the primary mechanism by which
therapeutic hypothermia improves outcomes after cardiac arrest?
A. Decreased cerebral metabolic rate and reduced reperfusion injury
B. Increased cardiac contractility and coronary perfusion pressure
C. Enhanced clearance of lactate and other metabolic byproducts
D. Prevention of hyperkalemia and acidosis during reperfusion
Answer: A. Decreased cerebral metabolic rate and reduced reperfusion injury
Therapeutic hypothermia (targeted temperature management) reduces cerebral oxygen
demand and attenuates the inflammatory cascade and free radical production during
reperfusion. It does not primarily increase contractility or enhance lactate clearance. It
may reduce reperfusion arrhythmias but not directly prevent hyperkalemia.
Page 3
, 5. A patient presents with a heart rate of 45/min, blood pressure 70/40 mmHg, and
signs of poor perfusion. The ECG shows a wide QRS escape rhythm. What is the
most appropriate immediate intervention?
A. Transcutaneous pacing
B. Atropine 0.5 mg IV
C. Epinephrine infusion
D. Isoproterenol infusion
Answer: A. Transcutaneous pacing
Symptomatic bradycardia with a wide QRS escape rhythm indicates a high-degree AV
block or ventricular escape, which is unlikely to respond to atropine. Transcutaneous
pacing is the most reliable immediate therapy. Epinephrine or isoproterenol may be
temporizing but pacing is definitive.
6. During a resuscitation, the team uses a 3:1 compression-to-ventilation ratio. What
is the rationale for this ratio in the pediatric population?
A. It provides the optimal balance between coronary perfusion and ventilation in most arrest
etiologies.
B. It minimizes interruptions in chest compressions while maintaining adequate minute
ventilation.
C. It is derived from adult data and applied to children for simplicity.
D. It is recommended only for neonates with a primary respiratory etiology.
Answer: B. It minimizes interruptions in chest compressions while maintaining
adequate minute ventilation.
The 3:1 ratio is used in neonates and infants to provide frequent ventilations (about
40-60 breaths/min) while allowing nearly continuous compressions. It minimizes
interruptions. The rationale is to maintain adequate ventilation, especially in
respiratory arrest. It is not derived from adult data nor limited to neonates.
Page 4
/ 2026 (Verified 100% Correct) - 250 Questions and Answers
Already Graded A+ Premium Exam Tested And Verified
Subject Area Pediatric Advanced Life Support (PALS)
Description This rigorous examination covers the latest AHA PALS guidelines, including
pediatric assessment, respiratory and circulatory emergencies, arrhythmia
recognition, and post-resuscitation care. It is designed for advanced healthcare
professionals seeking certification or recertification at the highest standard.
Expected Grade A+
Total Questions 250
Duration 3 hours
Learning Outcomes 1. Differentiate between compensated and hypotensive shock using subtle clinical
indicators.
2. Apply evidence-based algorithms for bradycardia, tachycardia, and cardiac
arrest in pediatric patients.
3. Interpret arterial blood gas and capnography data to guide ventilation strategies.
4. Evaluate post-cardiac arrest interventions to optimize neurologic outcomes.
Accreditation This exam meets the rigorous standards of Ivy League and R1 research
universities, reflecting the most current AHA PALS guidelines (2025/2026).
Page 1
,1. During a pediatric resuscitation, the team leader notes a narrow QRS tachycardia
with no pulse. After defibrillation, the rhythm converts to asystole. Which sequence
of actions is most appropriate?
A. Continue CPR for 2 minutes, then administer epinephrine 0.01 mg/kg IV/IO.
B. Administer amiodarone 5 mg/kg IV/IO immediately, then resume CPR.
C. Perform synchronized cardioversion at 1 J/kg, then check rhythm.
D. Administer adenosine 0.1 mg/kg IV/IO rapid push, then resume CPR.
Answer: A. Continue CPR for 2 minutes, then administer epinephrine 0.01 mg/kg
IV/IO.
After defibrillation for a shockable rhythm, the rhythm becomes asystole
(non-shockable). The algorithm for asystole/PEA is high-quality CPR and epinephrine
every 3-5 minutes. Amiodarone is used for shockable rhythms only. Synchronized
cardioversion is for stable tachyarrhythmias with a pulse. Adenosine is for stable
supraventricular tachycardia.
2. A patient in septic shock demonstrates hypotension despite fluid resuscitation.
Point-of-care ultrasound reveals a hyperdynamic left ventricle with a low
velocity-time integral. Which vasoactive agent is most appropriate?
A. Norepinephrine
B. Dobutamine
C. Epinephrine
D. Vasopressin
Answer: A. Norepinephrine
The findings suggest distributive shock with low systemic vascular resistance
(hyperdynamic LV, low VTI). Norepinephrine is the first-line vasopressor to increase
SVR. Dobutamine is for cardiogenic shock with low contractility. Epinephrine may be
used but has more chronotropic effects. Vasopressin is second-line.
Page 2
,3. A patient with respiratory distress has a heart rate of 200/min, blood pressure
75/40 mmHg, and capnography showing a sudden decrease in end-tidal CO2 from 40
to 25 mmHg. What is the most likely cause?
A. Increased cardiac output
B. Pulmonary embolism
C. Hyperventilation
D. Improper endotracheal tube placement
Answer: B. Pulmonary embolism
A sudden drop in ETCO2 with hypotension and tachycardia in a patient with
respiratory distress suggests a pulmonary embolism (increased dead space). Increased
cardiac output would raise ETCO2. Hyperventilation would decrease ETCO2
gradually. Improper tube placement would show absent or very low ETCO2.
4. Which of the following best describes the primary mechanism by which
therapeutic hypothermia improves outcomes after cardiac arrest?
A. Decreased cerebral metabolic rate and reduced reperfusion injury
B. Increased cardiac contractility and coronary perfusion pressure
C. Enhanced clearance of lactate and other metabolic byproducts
D. Prevention of hyperkalemia and acidosis during reperfusion
Answer: A. Decreased cerebral metabolic rate and reduced reperfusion injury
Therapeutic hypothermia (targeted temperature management) reduces cerebral oxygen
demand and attenuates the inflammatory cascade and free radical production during
reperfusion. It does not primarily increase contractility or enhance lactate clearance. It
may reduce reperfusion arrhythmias but not directly prevent hyperkalemia.
Page 3
, 5. A patient presents with a heart rate of 45/min, blood pressure 70/40 mmHg, and
signs of poor perfusion. The ECG shows a wide QRS escape rhythm. What is the
most appropriate immediate intervention?
A. Transcutaneous pacing
B. Atropine 0.5 mg IV
C. Epinephrine infusion
D. Isoproterenol infusion
Answer: A. Transcutaneous pacing
Symptomatic bradycardia with a wide QRS escape rhythm indicates a high-degree AV
block or ventricular escape, which is unlikely to respond to atropine. Transcutaneous
pacing is the most reliable immediate therapy. Epinephrine or isoproterenol may be
temporizing but pacing is definitive.
6. During a resuscitation, the team uses a 3:1 compression-to-ventilation ratio. What
is the rationale for this ratio in the pediatric population?
A. It provides the optimal balance between coronary perfusion and ventilation in most arrest
etiologies.
B. It minimizes interruptions in chest compressions while maintaining adequate minute
ventilation.
C. It is derived from adult data and applied to children for simplicity.
D. It is recommended only for neonates with a primary respiratory etiology.
Answer: B. It minimizes interruptions in chest compressions while maintaining
adequate minute ventilation.
The 3:1 ratio is used in neonates and infants to provide frequent ventilations (about
40-60 breaths/min) while allowing nearly continuous compressions. It minimizes
interruptions. The rationale is to maintain adequate ventilation, especially in
respiratory arrest. It is not derived from adult data nor limited to neonates.
Page 4
