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General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
If any of these are present, call 102 and go to the nearest emergency hospital now.
Your body normally cools itself by sweating. During hot weather, especially when it is very humid, sweating just isn't enough to cool you off. Your body temperature can rise to dangerous levels and you can develop a heat illness.
Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic
Findings that point to it: hyperthermia measured, confusion, seizure, drowsy.
Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic
EMERGENCY, go now: this is an emergency condition; go to the nearest emergency department or call 102.
Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic
Tests used to confirm: rapid cooling now (cold water immersion); emergency care.
Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic
Treatment is decided by a clinician after confirming the diagnosis. No dosing information is given here.
Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic
Wilderness Medical Society 2019 heat illness guideline (40 C plus CNS dysfunction)
Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic
Uses your location once to list the nearest facilities. Nothing is stored.
Text: SI summary in its own words (CC BY 4.0) with NLM MedlinePlus public-domain summary; facts checked against WHO fact sheets (CC BY-NC-SA 3.0 IGO, paraphrased with attribution) and Mayo Clinic (linked reference only, no text used); ICD-10 and labels from Wikidata (CC0).