Ace the Basic Life Support (BLS) Challenge 2025 – Breathe Life into Your Skills!

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What is the depth of chest compressions required for an adult patient?

At least 1 inch

At least 2 inches

The required depth of chest compressions for an adult patient during cardiopulmonary resuscitation (CPR) is at least 2 inches. This depth is crucial because compressions that are too shallow may not effectively circulate blood and provide adequate perfusion to vital organs, such as the heart and brain.

When performing compressions, aiming for a depth of 2 to 2.4 inches helps ensure that the heart is compressed sufficiently to generate blood flow. Research and guidelines from organizations such as the American Heart Association emphasize the importance of this depth to optimize the chances of survival in cases of cardiac arrest. By adhering to this standard, responders can greatly improve the effectiveness of their CPR efforts and increase the likelihood of a positive outcome for the patient.

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At least 3 inches

At least 4 inches

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