After performing 30 chest compressions, what is the next appropriate step?

After performing 30 chest compressions in the context of cardiopulmonary resuscitation (CPR), the next appropriate step involves maintaining an open airway to facilitate rescue breaths. This process includes tilting the head back slightly to open the airway and checking for any obstructions, such as food or other objects, that could prevent air from entering the lungs. If an object is observed, performing a finger sweep may be necessary to clear the airway before delivering rescue breaths.

This sequence occurs in the context of delivering high-quality CPR where chest compressions are followed by rescue breaths. The goal is to restore adequate oxygenation to the body and support the heart and brain, which are at high risk of damage during a cardiac arrest.

The other options, while relevant in different scenarios, do not follow the CPR sequence after chest compressions. Checking for a pulse and breathing is generally not done after every cycle of compressions in a layperson scenario, and administering naloxone is specific to opioid overdoses, which is not routine in all cardiac arrest situations. Providing rescue breaths immediately follows chest compressions in an established CPR protocol, making it critical for effective resuscitation.