BLS Lesson 1: Foundational Concepts
Questions and Answers | Latest Version
| 2025/2026 | Correct & Verified
How can you identify if someone is choking?
✔✔ The person may be clutching their throat, unable to speak or breathe, and might have a
distressed look.
What should you do if a choking adult becomes unresponsive?
✔✔ Start CPR, beginning with chest compressions.
Why is it important to minimize interruptions during chest compressions?
✔✔ To maintain blood flow to the brain and heart and increase the chances of survival.
What is the first step in using an AED?
✔✔ Turn the AED on and follow the voice prompts.
How should you perform rescue breaths if the chest does not rise?
✔✔ Reposition the victim’s head and try again with a stronger breath.
1
, What should you do if an AED advises no shock is needed?
✔✔ Resume CPR immediately and continue until help arrives.
What should you do if you’re alone and find an unresponsive adult?
✔✔ Call for help, get an AED if available, and begin CPR.
Why is early defibrillation important in cases of cardiac arrest?
✔✔ It can restore a normal heart rhythm and improve survival chances.
How should you position your hands when performing chest compressions?
✔✔ Place the heel of one hand on the center of the chest, with the other hand on top,
interlocking fingers.
What is the correct ratio of chest compressions to rescue breaths for an adult?
✔✔ 30 compressions to 2 breaths.
Why should you avoid giving chest compressions to a person who has a pulse?
2
Questions and Answers | Latest Version
| 2025/2026 | Correct & Verified
How can you identify if someone is choking?
✔✔ The person may be clutching their throat, unable to speak or breathe, and might have a
distressed look.
What should you do if a choking adult becomes unresponsive?
✔✔ Start CPR, beginning with chest compressions.
Why is it important to minimize interruptions during chest compressions?
✔✔ To maintain blood flow to the brain and heart and increase the chances of survival.
What is the first step in using an AED?
✔✔ Turn the AED on and follow the voice prompts.
How should you perform rescue breaths if the chest does not rise?
✔✔ Reposition the victim’s head and try again with a stronger breath.
1
, What should you do if an AED advises no shock is needed?
✔✔ Resume CPR immediately and continue until help arrives.
What should you do if you’re alone and find an unresponsive adult?
✔✔ Call for help, get an AED if available, and begin CPR.
Why is early defibrillation important in cases of cardiac arrest?
✔✔ It can restore a normal heart rhythm and improve survival chances.
How should you position your hands when performing chest compressions?
✔✔ Place the heel of one hand on the center of the chest, with the other hand on top,
interlocking fingers.
What is the correct ratio of chest compressions to rescue breaths for an adult?
✔✔ 30 compressions to 2 breaths.
Why should you avoid giving chest compressions to a person who has a pulse?
2
