Intro to EPALS Exam 2025 Questions and
Answers
What is difference between primary and secondary cardiorespiratory arrest - ANS Primary-
Sudden acute event occurring without warning normally due to arrhythmia
Secondary- Usually due to hypoxia and reflects limit of the body's ability to compensate for
underlying illness
Most common rhythms in primary cardiorespiratory arrest - ANS VF and pVT
What is the success rate of OHCA in children - ANS 4-12%
In a secondary cardiorespiratory arrest in hospital what is the percentage rate that achieve
ROSC and what is the average - ANS 60-80% (69% is average)
What % of children with a secondary cardiorespiratory arrest in hospital survive till discharge -
ANS 54%
How is the infant airway different - ANS -Smaller diameter
-Susceptible to oedema
What is the issue with applying too much pressure to a child with a O2 mask - ANS Damage
and reflex bradycardia
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
Answers
What is difference between primary and secondary cardiorespiratory arrest - ANS Primary-
Sudden acute event occurring without warning normally due to arrhythmia
Secondary- Usually due to hypoxia and reflects limit of the body's ability to compensate for
underlying illness
Most common rhythms in primary cardiorespiratory arrest - ANS VF and pVT
What is the success rate of OHCA in children - ANS 4-12%
In a secondary cardiorespiratory arrest in hospital what is the percentage rate that achieve
ROSC and what is the average - ANS 60-80% (69% is average)
What % of children with a secondary cardiorespiratory arrest in hospital survive till discharge -
ANS 54%
How is the infant airway different - ANS -Smaller diameter
-Susceptible to oedema
What is the issue with applying too much pressure to a child with a O2 mask - ANS Damage
and reflex bradycardia
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
