When encountering an unresponsive person, what is the first step you should take?

The first step when encountering an unresponsive person is to check for responsiveness using the shout-tap-shout sequence. This method involves shouting to see if the individual responds, gently tapping their shoulder to assess any reaction, and then shouting again if there's no response. This assessment is crucial because it helps to determine the level of consciousness of the person and informs the rescuer about the appropriate next steps.

If the person does not respond, it confirms the need for immediate action. Only after determining unresponsiveness should the rescuer call for help or initiate CPR. This sequence ensures that rescuers are not prematurely performing potentially unnecessary actions if the person might actually be responsive. Checking responsiveness first is essential in any emergency response protocol to ensure safe and effective care.