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Tests and diagnosis
By Mayo Clinic staffIt's usually apparent to doctors if you have heatstroke, but they may order laboratory tests to confirm their diagnosis and rule out other causes of your symptoms. These tests include:
- A blood test to check for low blood sodium or potassium and the content of gases in your blood to see if there's been any damage to your central nervous system
- A urine test to check the color of your urine, because it's usually darker if you have a heat-related condition, and to check your kidney function, which can be affected by heatstroke
- Muscle function tests to check for rhabdomyolysis — serious damage to your muscle tissue
- X-rays and other imaging tests to check for damage to your internal organs
References
- Extreme heat: A prevention guide to promote your personal health and safety. Centers for Disease Control and Prevention. http://www.bt.cdc.gov/disasters/extremeheat/heat_guide.asp. Accessed Aug 4, 2011.
- Heatstroke. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merckmanuals.com/professional/sec22/ch338/ch338d.html?qt=heat%20stroke&alt=sh. Accessed Aug. 4, 2011.
- Zimmerman JL, et al. Hyperthermia. In: Hall JB, et al. Principles of Critical Care. 3rd ed. New York, N.Y.: McGraw-Hill Professional; 2005. http://www.accessmedicine.com/content.aspx?aID=2282701. Accessed July 7, 2009.
- Becker JA, et al. Heat-related illness. American Family Physician. 2011;83:1325.
- Hyperthermia: Too hot for your health. National Institute on Aging. http://www.nia.nih.gov/HealthInformation/Publications/hyperthermia.htm. Accessed May 27, 2011.
- Ishimine P. Heat stroke in children. http://www.uptodate.com/home/index.html. Accessed May 27, 2011.
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