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. For more information, see the medical tests
Calcium (Ca) in Blood,
Chloride (Cl),
Potassium (K) in Blood, and
Phosphate in Blood.
- The amounts of
magnesium and calcium in the body are often 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.
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