Symptoms
Elevated temperature >40°C (104°F) PLUS
CNS neurologic abnormalities (e.g. inappropriate behavior, Confusion, slurred speech, Delirium, Ataxia, Coma, Seizures)
Anhidrosis is frequently present; however, its absence does NOT rule out<unk> 
May have massive hematochezia secondary to decreased intestinal perfusion and ischemia
Elevated temperature >40°C (104°F) PLUS
CNS neurologic abnormalities (e.g. inappropriate behavior, Confusion, slurred speech, Delirium, Ataxia, Coma, Seizures)
Heat stroke
Heat cramps
Electrical storm
Heat edema
Spinal shock
Heat exhaustion
Neurogenic shock
Heat tetany