Free PALS Cardiac Arrest Questions and Answers

Question 1

What condition usually results in pediatric cardiac arrest, secondary to shock or respiratory failure?

Accepted Answer

Tissue hypoxia

Answer

In pediatric patients, cardiac arrest is most commonly secondary to progressive respiratory failure or shock, which ultimately leads to severe tissue hypoxia. Prolonged lack of oxygen to the body's tissues and organs causes cellular dysfunction. This cascade of events eventually leads to cardiac arrest, often presenting as bradycardia progressing to asystole or PEA.

Question 2

Which presentation rhythm is most frequently seen in kids going into cardiac arrest?

Accepted Answer

PEA/asystole

Answer

Unlike adults, where ventricular fibrillation is a common initial rhythm in cardiac arrest, children most frequently present with pulseless electrical activity (PEA) or asystole. This is because pediatric cardiac arrest is typically secondary to respiratory failure or shock, leading to progressive bradycardia and then asystole, rather than a primary cardiac event.

Question 3

Which of the following does not usually result in a youngster experiencing a sudden cardiac arrest?

Accepted Answer

Drug intoxication

Answer

While drug intoxication can cause various cardiac issues, it is not considered one of the usual primary causes of sudden cardiac arrest in youngsters compared to underlying structural or electrical heart conditions. Myocarditis, hypertrophic cardiomyopathy, and long QT syndrome are well-established, common causes of sudden cardiac death in otherwise healthy-appearing children and adolescents.

Question 4

In a child who is not responding, where on the body is the best place to feel their pulse?

Accepted Answer

Carotid

Answer

In an unresponsive child, the carotid pulse is the most reliable and easily accessible central pulse to palpate. It is located in the neck, lateral to the trachea, and provides a strong indication of central circulation. Assessing this pulse is crucial for quickly evaluating cardiac output during resuscitation efforts.

Question 5

How many seconds should be the maximum duration for pulse checks on children?

Accepted Answer

10 seconds

Answer

According to PALS guidelines, pulse checks in children should not exceed 10 seconds. Prolonged pulse checks delay the initiation of chest compressions, which are critical for maintaining circulation and oxygen delivery during cardiac arrest. Rapid assessment ensures timely intervention and improves outcomes.

PALS - Pediatric Advanced Life Support Practice Test

PALS - Pediatric Advanced Life Support Practice Test

Free PALS Cardiac Arrest Questions and Answers