What is the minimum compression depth for adult CPR?

The minimum compression depth for adult CPR is established at 2 inches. This depth is crucial because it allows for effective circulation during cardiac arrest. Compressions that reach this depth ensure that the heart is adequately compressed to propel blood forward and maintain blood flow to vital organs.

If compressions are too shallow, as seen with depths less than 2 inches, the likelihood of achieving sufficient cardiac output diminishes significantly, thereby compromising the chance of survival for the victim. The recommendation of achieving a compression depth of at least 2 inches aligns with guidelines from authoritative organizations like the American Heart Association. Additionally, the depth should not exceed 2.4 inches to balance effectiveness with safety, further supporting the importance of maintaining proper technique during CPR. This approach helps maximize the chances of successfully resuscitating someone in need.