Nurse educator presenting on basic first aid for new home health nurses. She evaluates teaching as effective when new nurse states client who has heat stroke will have which of following?

The correct answer is A: Hypotension. In heat stroke, the body's temperature regulation fails, leading to vasodilation and dehydration. This results in decreased blood pressure (hypotension) as the body struggles to cool down. Choices B (Bradycardia), C (Clammy skin), and D (Bradypnea) are not typical signs of heat stroke. Bradycardia is a slower heart rate, which is usually not seen in heat stroke as the body tries to cool itself. Clammy skin may be present in heat exhaustion but not necessarily in heat stroke. Bradypnea, or slow breathing, is not a common symptom of heat stroke, which is more associated with rapid breathing due to the body's attempt to cool down.