American Medical Certification Association (AMCA) Phlebotomy Practice Exam 2026 - Free Phlebotomy Practice Questions and Study Guide

The recommended compression ratio for adult CPR is 30 compressions followed by 2 breaths, which is the standard guideline supported by organizations such as the American Heart Association. This ratio is designed to maximize blood flow to the heart and brain during a cardiac arrest situation while also ensuring that sufficient oxygen is provided through breaths.

Performing 30 compressions before giving 2 breaths allows the rescuer to provide effective chest compressions, which are crucial in maintaining blood circulation. This approach balances the need for compressions, which help keep blood circulating, with the need for breaths to oxygenate the blood.

In contrast, other ratios provided in the options do not align with current CPR guidelines. For instance, a lower number of compressions or an altered ratio could hinder the effectiveness of CPR, potentially reducing the chances of survival and recovery for the individual in need. The 30:2 ratio has been found to be the most effective for performing high-quality CPR in adults, making it the recommended standard for responders.