During resuscitation in an infant, ratio of chest compression and ventilation breath should be?

RAK Nursing Officer - 2019

Child Health Nursing (Pediatrics)

Hard

Appeared in: RAK Nursing Officer - 2019

Explanation

The correct compression-to-ventilation ratio for neonatal resuscitation is 3:1.
This ratio is designed to deliver 90 compressions and 30 breaths per minute, for a total of 120 events.
The primary cause of cardiac arrest in newborns is respiratory failure (asphyxia), making effective ventilation a critical component of resuscitation along with chest compressions.
This 3:1 ratio is a specific guideline from the Neonatal Resuscitation Program (NRP) and differs from standard infant/child CPR.

Option A: A 1:5 ratio is incorrect and not a standard guideline for CPR in any age group. It would lead to excessive ventilation and insufficient circulation.
Option B: A 5:1 ratio is not a standard guideline for CPR. It would overemphasize compressions at the expense of critical ventilation, especially in a newborn whose arrest is likely due to respiratory issues.
Option C: A 1:3 ratio incorrectly reverses the proper neonatal resuscitation sequence. It would provide far too many breaths and not enough compressions to maintain circulation.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Cardiopulmonary Resuscitation (CPR) Ratios as background academic context rather than a clinical decision trigger.
Knowing the correct CPR ratio is a critical, life-saving skill. Using the wrong ratio can be ineffective and harmful.
The distinction between neonatal resuscitation (3:1) and infant CPR (15:2 or 30:2) is vital. Neonatal arrest is typically asphyxial, while infant arrest can have more varied causes.
What if? If two healthcare providers are performing CPR on a 6-month-old infant (not a newborn), the correct ratio would be 15:2, not 3:1. The age and context are crucial for selecting the right algorithm.

How to Approach the Question

First, identify the core of the question: it asks for the compression-to-ventilation ratio during infant resuscitation.
Review the options provided: 1:5, 5:1, 1:3, and 3:1.
Recall the standard CPR guidelines. For a single rescuer with an infant, the ratio is 30:2. For two rescuers, it's 15:2. Notice that neither of these standard infant ratios is an option.
Consider the special case of a newborn (neonate). The guideline for neonatal resuscitation is a 3:1 ratio.
Since 3:1 is an option and the standard infant ratios are not, deduce that the question, despite using the word 'infant', is referring to a newborn in the immediate post-delivery period.
Select the option that matches the neonatal resuscitation guideline.

Concept Tested & Keywords

Concept Tested: Cardiopulmonary Resuscitation (CPR) Ratios
Stem keywords: resuscitation, infant, chest compression, ventilation breath, ratio
Lead-in keywords: ratio
Clinical cues: The term 'infant' is used, but the options point towards neonatal guidelines.
Negative lead-in flag: false

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E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1080-1082

E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 763-765