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Magnesium (Mg)

What To Think About

  • A test for magnesium may be done along with testing for other electrolytes, such as calcium, chloride, potassium, and phosphorus.
  • The amounts of magnesium and calcium in the body are closely related.
  • Having low magnesium levels is rare. Symptoms of a magnesium deficiency include weakness, dizziness, irregular heartbeat, shaking, twitching, and seizures. Low magnesium levels are usually caused by not eating enough of the foods that contain magnesium or from problems that block the way food is absorbed from the intestines.

Citations

  1. Fischbach FT, Dunning MB III, eds. (2009). Manual of Laboratory and Diagnostic Tests, 8th ed. Philadelphia: Lippincott Williams and Wilkins.

Other Works Consulted

  • Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis: Saunders.

  • Fischbach FT, Dunning MB III, eds. (2009). Manual of Laboratory and Diagnostic Tests, 8th ed. Philadelphia: Lippincott Williams and Wilkins.

  • Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier.

ByHealthwise Staff
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerThomas M. Bailey, MD - Family Medicine

Current as ofSeptember 9, 2014

1 | 2 | 3

WebMD Medical Reference from Healthwise

Last Updated: September 09, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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