Emergency Medical Responder Practice Exam

Question: 1 / 400

What is the correct compression depth for adult CPR?

At least 1 inch

At least 2 inches

The correct compression depth for adult CPR is at least 2 inches. This depth is crucial in ensuring that compressions are effective at generating enough pressure to circulate blood, especially to vital organs like the heart and brain, during a cardiac arrest event. Research indicates that compressing to a depth of 2 to 2.4 inches helps achieve a balance between the necessary force to circulate blood and the risk of causing injury to the chest wall. Additionally, maintaining this depth helps responders deliver effective CPR consistently, which is vital for providing any chance of restoring spontaneous circulation before advanced medical help arrives. Proper technique, including ensuring that the compressions are not too shallow or too deep, is essential for maximizing the chances of survival in patients who experience cardiac arrests.

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At least 3 inches

At least 4 inches

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