Final answer:
The recommended duration of targeted temperature management during post-cardiac arrest care is at least 24 hours. Controlled hypothermia is used to reduce the metabolic rate and minimize the risk of organ damage.
Step-by-step explanation:
The recommended duration of targeted temperature management during post-cardiac arrest care is at least 24 hours. Controlled hypothermia, which is clinically induced hypothermia, is often used in order to reduce the metabolic rate of the brain, heart, and other organs, reducing the risk of damage. During this process, the patient's body temperature is lowered to approximately 91 degrees for 24 hours to slow the metabolic rate and reduce the heart's workload.