You are alone with a child who has collapsed and is unresponsive. When should you phone 911?

• A. Immediately
• B. After you have given the child one minute of CPR
• C. After you have given two minutes of CPR
• D. Only if you see a pulse

Answer: (B)

The most important action is to keep blood flowing to the brain as soon as you find an unresponsive child. Start CPR immediately because immediate chest compressions help maintain perfusion.

If you’re alone, continue high-quality chest compressions for about one minute, then call 911 to summon emergency services and get an AED. This sequence balances delivering immediate circulation with getting professional help on the way. You should not wait to feel a pulse before starting CPR, since reliable pulse checks can be difficult in an emergency and unresponsiveness with no normal breathing warrants starting CPR right away.