Which of the following are symptoms of heat stroke?

Flushed skin and dry skin are indeed common symptoms of heat stroke. When a person experiences heat stroke, their body temperature rises to dangerous levels, leading to changes in the skin's appearance and normal cooling mechanisms. Flushed skin occurs due to increased blood flow to the surface of the skin as the body attempts to cool itself. However, unlike typical heat-related illnesses where sweating occurs, dry skin is a hallmark sign of heat stroke, indicating that the body has lost its ability to regulate temperature through perspiration.

The other symptoms listed in the other choices, such as numbness or excessive sweating, do not typically characterize heat stroke. Numbness and a drop in blood pressure might be associated with different medical conditions, while chills and excessive sweating are more common in heat exhaustion rather than heat stroke. Additionally, fatigue and confusion may be observed in heat-related illnesses, but they are not specific indicators of heat stroke like flushed and dry skin are.