Why Do CPR Guidelines Change?

CPR guidelines are updated every five years based on the latest research in resuscitation science. These updates reflect what has been proven to work best in real-life cardiac arrest situations. The goal? To save more lives.

Key Updates in the 2025 AHA CPR Guidelines

Here are the most important changes introduced in the 2025 AHA update:

1. New Compression-to-Ventilation Emphasis

• For adults, the focus remains on high-quality chest compressions.

• However, there's now increased emphasis on timely rescue breaths for trained rescuers, especially in non-cardiac arrest situations like drowning or opioid overdose.

2. Updated Compression Depth for Children

• New research suggests a more precise compression depth of 1/3 of the chest diameter, not exceeding 2.4 inches (6 cm), to reduce injury risk while maintaining effectiveness.

3. Infant CPR Technique Adjustment

• For single rescuers, the recommended technique has shifted to two-finger compressions rather than thumbs encircling the chest — unless two rescuers are present.

4. AED Use for Children Now More Flexible

• The AHA now encourages earlier use of AEDs for infants under 1 year, especially if pediatric settings are available. Automated defibrillators are becoming smarter and safer for younger patients.

5. Opioid Emergency Response Expanded

• New guidelines now include updated training on naloxone administration, recognizing the ongoing rise in opioid-related emergencies across the U.S.