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Heart and Stroke BLS Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
How do you position an unresponsive breathing victim to maintain their airway?✔✔ Place them in the recovery position (on their side with the head tilted back).
What is the correct way to open the airway of an unresponsive victim?✔✔ Use the head-tilt, chin-lift maneuver to lift the tongue away from the airway.
How deep should chest compressions be for an adult during CPR?✔✔ At least 2 inches but no more than 2.4 inches.
What is the correct rate for performing chest compressions?✔✔ 100 to 120 compressions per minute.
How do you check for breathing in an unresponsive victim?✔✔ Look, listen, and feel for no more than 10 seconds while scanning for chest movement.
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What should you do if a victim is gasping but unresponsive?✔✔ Treat it as cardiac arrest and begin CPR immediately.
When should you activate the emergency response system for an unresponsive adult?✔✔ Immediately after confirming unresponsiveness (call 911/get an AED).
What is the correct compression-to-ventilation ratio for single-rescuer adult CPR?✔✔ 30 compressions to 2 ventilations.
How do you perform chest compressions on an infant?✔✔ Use two fingers (or two thumbs with hands encircling the chest) on the lower half of the sternum.
What is the correct depth for infant chest compressions?✔✔ About 1½ inches (4 cm).
What should you do if a choking infant becomes unresponsive?✔✔ Lower them to a firm surface and begin CPR, starting with compressions. 2 / 3
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How do you give rescue breaths to an infant?✔✔ Cover the infant’s mouth and nose with your mouth and deliver gentle puffs of air.
What is the first step in helping a choking adult who cannot cough or speak?✔✔ Perform abdominal thrusts (Heimlich maneuver) until the object is expelled or they become unresponsive.
What should you do if a victim vomits during CPR?✔✔ Turn them to the side, clear the airway, then resume CPR.
How long should you check for a pulse in an unresponsive victim?✔✔ No more than 10 seconds.
What is the most critical part of high-quality CPR?✔✔ Minimizing interruptions in chest compressions.
When using an AED, what should you do before delivering a shock?
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