Phoenix – NBC has reported local doctors saying patients have been arriving in Phoenix emergency rooms with organ failure, sunburn, or comas due to intense heat. The normal body temperature is 97 to 99°F. In contrast, an infection-related fever typically rises above 100.4°F while 104°F or higher is the threshold at which heatstroke occurs. Heatstroke and heat exhaustion can cause severe symptoms, including mental changes, coma, and seizures, while high temperatures can cause organ failure and inflammation. Rapid cooling using a thermometer to monitor body temperature helps save lives during heat illness calls. Patients are also given ice bath.