Hyponatremia signs and symptoms may include:
- Nausea and vomiting
- Loss of energy and fatigue
- Restlessness and irritability
- Muscle weakness, spasms or cramps
When to see a doctor
If you have a medical condition that increases your risk of hyponatremia, or you have other risk factors for hyponatremia, such as participating in high-intensity activities, and you have the signs and symptoms of low blood sodium, see your doctor.
May 28, 2014
- Papadakis MA, ed., et al. Current Medical Diagnosis & Treatment 2014. 53rd ed. New York, N.Y.: The McGraw-Hill Companies; 2014. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=1. Accessed March 11, 2014.
- Spasovski G. Clinical practice guideline on diagnosis and treatment of hyponatraemia. Nephrology Dialysis Transplantation. 2014; 29(suppl):i1.
- Longo DL, et al. Harrison's Online. 18th ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=4. Accessed March 11, 2014.
- Hyponatremia. The Merck Manuals: The Merck Manual for Health Care Professionals. http://www.merckmanuals.com/professional/endocrine_and_metabolic_disorders/electrolyte_disorders/hyponatremia.html. Accessed March 14, 2014.
- Sodium, serum. Mayo Medical Laboratories. http://www.mayomedicallaboratories.com/test-catalog/Clinical+and+Interpretive/81692. Accessed March 15, 2014.
- Sterns RH. Causes of hyponatremia in adults. http://www.uptodate.com/home. Accessed March 11, 2014.
- Bennett BL, et al. Wilderness medical society practice guidelines for treatment of exercise-associated hyponatremia. Wilderness & Environmental Medicine. 2013;24:228.