Heat syncope
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Heat syncope another stage in the same process as heat stroke, occurs under similar conditions as heat stroke and is not distinguished from the latter by some authorities. The basic symptom of heat syncope is a body temperature above 40°C (104°F) with fainting, or without mental confusion, which does occur in heat stroke. Heat syncope is caused by mild overheating with inadequate water or salt. In young persons, it is far more common than true sunstroke.
Heat syncope occurs when blood pressure is lowered as the body dilates (widens) capillaries (small blood vessels) in the skin to radiate heat. Also, water is evaporated from the blood, reducing the blood's volume and therefore lowering blood pressure further. The result is less blood to the brain, causing light-headedness and fainting.
The basic treatment for heat syncope is like fainting: the patient is positioned in a seating or supine position with legs raised. Water and oral rehydration salt are administered slowly, and the patient is moved to a cooler area.
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Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
