What action should be taken in case of hypothermia?

Wrapping the person in warm blankets is the appropriate action to take in case of hypothermia. Hypothermia occurs when the body loses heat faster than it can produce it, resulting in a dangerously low body temperature. The primary goal in treating hypothermia is to gradually rewarm the person and prevent further heat loss.

Using warm blankets helps create insulation, trapping body heat and allowing the person to regain warmth. It is crucial to provide warm (not hot) blankets to avoid burning the skin of someone who has lost sensitivity due to the cold. The warmth should be applied gently to prevent shock.

The other options are not suitable because giving cold water would only exacerbate the condition by further lowering the body temperature. Keeping the person exposed to fresh air can lead to additional heat loss. Encouraging exercise also poses risks as it can lead to increased heart workload and further heat loss, especially if the individual is already severely affected by cold exposure.