When cardiac arrest occurs, blood flow to the brain declines. This decline in blood flow can result in the patient becoming unconscious in 30 seconds, with permanent brain damage occurring after 4 to 6 minutes.

Question

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Both statements accurately describe the consequences of cardiac arrest on brain function. The rapid decline in blood flow to the brain can indeed lead to unconsciousness within seconds and potentially cause permanent brain damage if the flow is not restored within a few minutes.

When Cardiac Arrest Occurs, Blood Flow to the Brain Declines