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American Red Cross BLS Lesson 3 Pre- Assessment Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
How deep should chest compressions be for an adult victim?✔✔ At least 2 inches (5 cm).
What is the recommended compression depth for infant CPR?✔✔ About 1.5 inches (4 cm).
What should you do if you witness a sudden collapse of an adult?✔✔ Call for emergency help and immediately begin CPR.
How can you minimize interruptions during CPR?✔✔ Perform compressions continuously and only pause for AED use or ventilations.
Why is it important to allow full chest recoil between compressions?✔✔ It allows the heart to refill with blood and improves circulation. 1 / 2
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How many rescue breaths should be given after every 30 compressions in single-rescuer adult CPR?✔✔ Two breaths.
How do you check for a pulse in an unresponsive adult?✔✔ Check the carotid artery on the side of the neck.
How do you check for a pulse in an unresponsive infant?✔✔ Check the brachial artery inside the upper arm.
What should you do if a choking victim becomes unresponsive?✔✔ Begin CPR, checking for an obstruction before each set of breaths.
What is the purpose of an AED?✔✔ To deliver an electric shock to restore a normal heart rhythm.
Where should AED pads be placed on an adult?
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