Which of the following is a sign that CPR is needed?

A key sign that CPR is necessary is when a person is unresponsive. When an individual does not respond to verbal or physical stimuli, it indicates a potential life-threatening emergency, which often requires immediate intervention. Unresponsiveness suggests that the person may not be breathing adequately or at all, which are critical indicators for the need for CPR.

In situations where a person is breathing normally, talking, or alert, these would all suggest that they are likely stable and do not require CPR. Normal breathing and responsiveness indicate that the airway is clear and the heart is functioning properly, thus negating the need for resuscitation efforts. This understanding is crucial for correctly identifying emergencies where CPR is deemed necessary, emphasizing the importance of assessing both responsiveness and breathing in such scenarios.