Magnesium Test

Magnesium (Mg) analysis measures the level of this vital cation (positive ion) in blood serum. Magnesium is essential for over 300 enzymatic reactions in the body, including energy production, protein and DNA synthesis, nerve and muscle function, blood pressure regulation, and nerve signal transmission. Most of the body's magnesium stores are found in bones and muscles, with only a small portion reflected in blood levels.