When should you call for emergency help if someone is unconscious?

Calling for emergency help is critical when someone is unconscious, and the appropriate timing is immediately after checking for responsiveness and not finding any. This is important because an unconscious person may require urgent medical intervention due to a variety of potential causes, such as cardiac arrest, stroke, or severe injury.

When a person is unresponsive, it indicates that immediate action is necessary. By calling for emergency services right away, you ensure that professional medical assistance is on the way while you are still assessing the situation and, if necessary, starting care such as CPR or using an AED. This prompt action can be crucial to the person's survival and recovery.

The other options suggest delays or conditions that could lead to a critical lapse in care. For instance, only calling if the person isn’t breathing could lead to significant health risks, as there may be other life-threatening issues present. Waiting a minute or after performing CPR for a while before calling can also drastically reduce the chances of a positive outcome for the individual. Immediate action is critical in emergency situations, which is why the first response should be to call for help right after confirming the lack of responsiveness.