Question

question 3 of 5
you are alone and have identified an adult who is not responsive. what is the next step in cpr?
a. begin rescue breaths.

b. call 911.

c. begin chest compressions.

d. retrieve an aed if one is available.

Explanation:

In CPR for an unresponsive adult when alone, the first action after checking responsiveness is to call 911 (or local emergency number) to get professional help on the way, then start chest compressions. But among the options, the next step after identifying unresponsiveness (and no breathing/pulse check if needed) is to call 911 first when alone. Wait, actually, the correct sequence for single rescuer: check responsiveness, call 911, then start chest compressions. But the options here: when alone, after finding unresponsive, the next step is to call 911 (option B). Wait, no, maybe I confused. Wait, the 2020 AHA guidelines: for adult, single rescuer: check responsiveness, activate emergency response system (call 911), then start CPR (chest compressions). But the options: if the question is about next step after identifying unresponsive (and no breathing), then call 911 first when alone. So the correct answer is B. Call 911.

Answer:

B. Call 911.