fever

Fever, febrile illness, pyrexia: elevation of body temperature due to circulating pyrogens caused by:

endotoxins

immune complexes and inflammation

infection

microbial toxins

tissue injury

Hyperthermia: dysregulation of body temperature (elevated) due to:

decreased heat dissipation

anticholinergic drugs

autonomic dysfunction

dehydration

heatstroke (classic)

neuroleptic malignant syndrome

occlusive clothing/dressings

increased heat production

catatonia (lethal catatonia)

delerium tremens

drugs – amphetamines, (anesthetics), cocaine, salicylate intoxication

exertional hyperthermia and exertional heatstroke

heatstroke

malignant hyperthermia of anesthesia

pheochromocytoma crisis

tetanus (generalized)

thyroid storm (thyrotoxicosis)

serotonin syndrome

status epilepticus

hypothalamic dysfunction

cerebrovascular accident

encephalitis

granulomatous infections

hypothalamic insult caused by infection, tumor, or drugs

idiopathic hypothalamic dysfunction

neuroleptic malignant syndrome

sarcoidosis

trauma

tumors