Active rewarming involves which of the following and is not used in severe hypothermia?

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Multiple Choice

Active rewarming involves which of the following and is not used in severe hypothermia?

Explanation:
Active rewarming means using an external heat source to raise the patient’s core temperature. The option that describes applying an external heat source fits this idea. In mild to moderate hypothermia, this approach is appropriate, but in severe hypothermia it’s not used because aggressive external warming can cause rapid core warming, afterdrop, or cardiac arrhythmias. Instead, management focuses on gentle warming—often passive warming with careful internal rewarming methods (such as warmed IV fluids) and close monitoring. The other options involve cooling or removing heat, which would not achieve rewarming.

Active rewarming means using an external heat source to raise the patient’s core temperature. The option that describes applying an external heat source fits this idea. In mild to moderate hypothermia, this approach is appropriate, but in severe hypothermia it’s not used because aggressive external warming can cause rapid core warming, afterdrop, or cardiac arrhythmias. Instead, management focuses on gentle warming—often passive warming with careful internal rewarming methods (such as warmed IV fluids) and close monitoring. The other options involve cooling or removing heat, which would not achieve rewarming.

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