What is the first action to take when performing CPR on an adult?

The first action to take when performing CPR on an adult is to check for responsiveness. This step is crucial because it helps determine the condition of the individual and whether they require immediate medical assistance. Checking for responsiveness allows the rescuer to assess if the person is conscious and breathing. If there is no response, it is an indication that the situation may require urgent intervention.

Once it is confirmed that the person is unresponsive, the rescuer can then move forward with the appropriate steps, which typically include calling for help and beginning chest compressions if necessary. However, initiating CPR should always start with assessing responsiveness to ensure that the person is truly in need of assistance. This foundational action helps guide the subsequent steps in providing care effectively.