Stay with the victim until medical help arrives Victims of heat exhaustion must be examined by a qualified medical practitioner and should not participate in strenuous activity for the rest of the day. Bed rest and restoration of body water and salt usually are all the treatment needed. It is considered a catastrophic illness and has a high death rate. When the body depletes its salt and water supplies, sweating stops and heat loss by evaporation of sweat is blocked. The victim's body temperature soars to fatal levels.
Heat stroke occurs more readily when the body has suffered a previous heat disorder.
Constricted pupils High blood pressure Headache or dizziness Confusion or delirium Bizarre behavior Weakness Nausea or vomiting. The most important step is prompt recognition of heat stroke symptoms and immediate treatment. Follow the same steps as for heat exhaustion, but start the cooling process without delay. You must lower the victim's body temperature as fast as possible. Immerse the victim in water.