How often should you check for responsiveness and breathing before starting CPR?

The correct answer emphasizes the importance of assessing the patient's condition before initiating CPR. It is critical to confirm unresponsiveness and the absence of normal breathing immediately before starting CPR, as this determination informs the necessity of starting lifesaving measures.

If a person is unresponsive and not breathing or only gasping, it indicates cardiac arrest or a life-threatening condition that requires immediate attention. Therefore, conducting this assessment right before initiating CPR ensures that unnecessary procedures are not performed if the patient is responsive or breathing adequately. Establishing the need for CPR right at the outset maximizes the chances of survival and effective response.

The other options suggest incorrect timing for assessments during the CPR process. Maintaining an accurate and timely evaluation of the patient's responsiveness and breathing is crucial to ensuring appropriate emergency care is provided.