High School

When a single rescuer is administering CPR to an adult victim, what is the ratio of chest compressions to ventilations?

A. 30:2
B. 15:1

Answer :

When a single rescuer is administering CPR to an adult victim, the appropriate ratio of chest compressions to ventilations is 30:2. Here's how this works:

1. Chest Compressions: The rescuer performs 30 chest compressions. These compressions should be at a steady and consistent rate, approximately 100 to 120 compressions per minute.

2. Ventilations: After these 30 compressions, the rescuer provides 2 ventilation breaths. Each breath should be given over about one second, with enough volume to see the chest rise.

3. Cycle Repetition: This cycle of 30 compressions followed by 2 breaths is repeated continuously, ensuring minimal interruptions between compressions and ventilations.

This 30:2 ratio is designed to maximize blood flow while providing enough oxygen during CPR to an adult in cardiac arrest. The goal is to maintain circulation of oxygenated blood to vital organs until professional medical help arrives or the patient recovers.