Edema, tetany, syncope, prickly heat


Signs and Symptoms of Heat Emergencies
Heat Cramps Heat Exhaustion Heat Stroke
Muscle cramps

Normal to mildly elevated temperature

Sweating

Symptoms seen in heat cramps plus:

Normal to elevated temperature [<40°C (<104°F)]

Nausea, vomiting, headache, malaise, dizziness

Orthostatic hypotension

Symptoms seen in heat exhaustion plus:

Elevated temperature [>40°C (>104°F)]

Neurologic abnormalities: inappropriate behavior, confusion, delirium, ataxia, coma, seizures

Anhidrosis or sweating

Heat Edema

Heat Tetany

Heat Syncope

Prickly Heat