Heat stroke is a life-threatening illness that occurs when the body loses the ability to dissipate heat and core temperature reaches greater than 40°C (104°F), usually as a result of physical exertion and dehydration in a hot environment. Athletes, military personnel, and outdoor workers are particularly at risk.
This case presents an 80-year-old male who was working in his yard when he collapsed and developed convulsions of all extremities. On EMS arrival he was unresponsive, with a tympanic temperature of 102.5, and HR of 124. He was treated for presumed heat stroke with iced saline and cold packs applied to the axillae.