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Heart and Stroke – BLS Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What is the first thing you should do when someone collapses in front of you?✔✔ Ensure the scene is safe, check for responsiveness, and call for help.
How do you confirm that a person is completely unresponsive?✔✔ Tap their shoulders and shout their name loudly while looking for any movement.
Why is early CPR important for a person in cardiac arrest?✔✔ It keeps blood and oxygen flowing to the brain and vital organs until advanced help arrives.
What should you do if you find a person who is breathing but unconscious?✔✔ Place them in the recovery position and monitor their breathing.
How can you improve the effectiveness of chest compressions?✔✔ Push hard and fast, allow full chest recoil, and minimize interruptions.
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What is the purpose of tilting the head back when giving rescue breaths?✔✔ It opens the airway by preventing the tongue from blocking it.
What is the best way to ensure that a rescue breath is effective?✔✔ Watch for visible chest rise while delivering the breath over one second.
How should you modify CPR for a person who has an advanced airway in place?✔✔ Perform continuous compressions and give one breath every six seconds.
Why should you avoid excessive ventilation during CPR?✔✔ Too much air can cause pressure buildup, reducing circulation and increasing the risk of complications.
What should you do if an unresponsive person starts making gasping sounds?✔✔ Start CPR immediately, as gasping is not normal breathing.
How do you provide chest compressions for a pregnant person?✔✔ Perform compressions as usual but consider tilting them slightly to the left if possible. 2 / 3
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How do you determine if someone has a pulse during a cardiac emergency?✔✔ Check the carotid artery for no more than 10 seconds.
What should you do if an AED is not immediately available?✔✔ Start CPR and continue until an AED arrives or advanced help takes over.
Why is defibrillation most effective when performed early?✔✔ It restores a normal heart rhythm before the heart sustains irreversible damage.
What is the correct hand position for chest compressions on a small child?✔✔ Place one or two hands on the lower half of the sternum.
How do you help an infant who is choking and still conscious?✔✔ Give five back blows followed by five chest thrusts.
What should you do after the first shock from an AED is delivered?✔✔ Immediately resume chest compressions.
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