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Potentially life-threatening emergency
Heat stroke
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Potentially life-threatening emergency

Heat stroke

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Contributors: Casey Silver BA, Benjamin L. Mazer MD, MBA, Abhijeet Waghray MD
Other Resources UpToDate PubMed

Synopsis

Heat stroke is a life-threatening cause of hyperthermia and altered mental status. Cardinal symptoms include a temperature above 40°C (104°F), neurologic dysfunction, and anhidrosis. Patients with heat stroke experience a variety of neurological abnormalities including ataxia, seizure, and hallucinations. It is caused by the body's inability to fully dissipate heat. It often occurs in the setting of high environmental temperature and physical exertion. Other factors, such as certain medications, medical conditions, and dehydration, may make a person more prone to heat stroke.

Meningitis, neuroleptic malignant syndrome, toxic ingestion, and other conditions may mimic heat stroke, so the diagnosis must carefully consider clinical history. Treatment primarily consists of physical cooling (evaporative, ice water, etc), fluid resuscitation, and monitoring for complications.

Codes

ICD10CM:
T67.0XXA – Heatstroke and sunstroke, initial encounter

SNOMEDCT:
52072009 – Heat Stroke

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

Best Tests

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Management Pearls

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Therapy

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Drug Reaction Data

Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.

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References

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Last Reviewed: 05/09/2019
Last Updated: 05/14/2019
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Potentially life-threatening emergency
Heat stroke
Print 1 Images
Heat stroke : Agitation, Dizziness, Flushing, Headache, Ataxia, Dehydration, Delirium, Dysarthria, Diaphoresis, Lethargy, Tachypnea, Prolonged heat exposure, Hyperthermia, Weakness
Copyright © 2019 VisualDx®. All rights reserved.