Emergency Medicine Book

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Heat Related IllnessAka: Heat Illness, Heat Edema, Heat Stress, Heat Injury

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  1. Exertional Heat Syndromes
    1. Heat Edema
      1. Benign swelling of hands, feet, and ankles
      2. Associated with salt or water retention from heat
    2. Heat Syncope
      1. Dizziness or fainting after heat exposure
      2. Secondary to vasodilatation and Postural Hypotension
      3. Seen in persons unaccustomed to extreme heat
    3. Heat Stress
      1. Increased temperature following heat exposure
    4. Heat Cramps
    5. Heat Exhaustion
    6. Heat Stroke
  2. Risks
    1. See Heat Illness Risk Factors
    2. See Medications Predisposing to Heat Illness
  3. Management
    1. General Principles
      1. Rest
      2. Cooling
      3. Hydration
    2. Treat per degree of heat illness
      1. Heat Cramps
      2. Heat Exhaustion
      3. Heat Stroke
  4. Prevention
    1. See Heat Illness Prevention
  5. References
    1. Czerkawski (1996) Your Patient Fitness 10(4): 13-20
    2. Sandor (1997) Physician SportsMed, 25(6):35-40
    3. Barrow (1998) Am Fam Physician 58(3):749
    4. Hett (1998) Postgrad Med 103(6):107
    5. Wexler (2002) Am Fam Physician 65(11):2307

Heat Stress Disorders (C0282507)

Definition (MSH)A group of conditions due to overexposure to or overexertion in excess environmental temperature. It includes heat cramps, which are non-emergent and treated by salt replacement; HEAT EXHAUSTION, which is more serious, treated with fluid and salt replacement; and HEAT STROKE, a condition most commonly affecting extremes of age, especially the elderly, accompanied by convulsions, delusions, or coma and treated with cooling the body and replacement of fluids and salts. (From Segen, Dictionary of Modern Medicine, 1992)
ConceptsInjury or Poisoning (T037)
MSHD018882
EnglishHeat Stress, HEAT STRESS DIS, Heat Stress Disorder, Heat Stress Disorders, Heat Stress Syndrome, Heat Stress Syndromes, Heat Stresses, STRESS DIS HEAT
Parent ConceptsWounds and Injuries (C0043251)
SourcesMSH, NDFRT
Derived from the NIH UMLS (Unified Medical Language System)


Thermal injury (C0332685)

Definition (CSP)damage inflicted on any part of an organism as the direct or indirect result of exposure to a high temperature, with or without disruption of structural continuity.
ConceptsInjury or Poisoning (T037)
EnglishHeat injury, Thermal injury
Spanishinjuria por calor, injuria termica, lesion por calor, lesion traumatica termica
Parent ConceptsInjury (C0175677), Traumatic abnormality by mechanism (C1302720)
SourcesCSP, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)


Heat Illness (C1456556)

ConceptsInjury or Poisoning (T037)
EnglishHeat Illness
SourcesMEDLINEPLUS
Derived from the NIH UMLS (Unified Medical Language System)



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