The outdoors and exercise seem to go together, but high temperatures and exercise can be a risky combination. Play it safe to prevent heat-related illnesses.
Coma is often a complication from a severe brain injury that leaves a person unconscious and unresponsive. Many people recover from this condition.
Fatigue can signal many things. Here are some tips to help you decipher why you're wiped out and to regain your energy.
Most headaches aren't caused by a serious illness, but some could be a sign of a life-threatening condition.
Sick to your stomach? Nausea and vomiting usually pass quickly but sometimes result from long-term or serious conditions.
Tests and diagnosis
Urinalysis can be used to assess your overall health, detect a wide range of disorders, or monitor a medical condition or treatment.
Jul. 14, 2011
- Hyponatremia. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merckmanuals.com/professional/print/sec12/ch156/ch156d.html. Accessed May 7, 2011.
- Ball SG. Hyponatremia. Journal of the Royal College of Physicians of Edinburgh. 2010;40:240.
- Sterns RH. Causes of hyponatremia. http://www.uptodate.com/home/index.html. Accessed May 3, 2011.
- Lien YH, et al. Hyponatremia: Clinical diagnosis and management. American Journal of Medicine. 2007;120:653.
- Drezner JA, et al. Sports medicine. In: Rakel RE. Textbook of Family Medicine. 7th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/191205553-4/0/1481/0.html#. Accessed May 8, 2011.
- Goh KP. Management of hyponatremia. American Family Physician. 2004;69:2387.