What is the appropriate action for a nurse assessing a young healthy adult experiencing fatigue and lightheadedness after exercising in hot weather?

The appropriate action in this scenario is to measure body temperature. Fatigue and lightheadedness after exercising in hot weather can be indicative of heat-related illnesses, such as heat exhaustion or even heat stroke. Elevated body temperature is a key indicator of these conditions, as the body struggles to cool itself during intense exercise in hot environments. By measuring the body temperature, the nurse can gather crucial information to assess whether the individual is experiencing a potentially dangerous overheating condition.

Monitoring body temperature allows the nurse to evaluate the severity of the situation and decide on the necessary interventions, such as cooling measures or seeking further medical attention if the temperature is significantly elevated. Other assessments, such as blood pressure, heart rate, and oxygen saturation, also provide valuable information, but assessing body temperature is particularly relevant in this case due to the risk of heat stress in hot weather conditions.