Minerals and Electrolytes

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Lab Results, Lab Tests, Magnesium, Minerals and Electrolytes

What Does a High or Low Magnesium Result Mean?

Ryan Morgan, MLS(ASCP) / August 17, 2026

A high or low magnesium result can point to kidney function, medications, gut losses, supplements, or related electrolyte problems. Learn how to interpret magnesium blood test results and what to ask next.

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Lab Test Guides, Lab Tests, Minerals and Electrolytes

Magnesium Blood Test: What It Measures, Preparation, and Results

Ryan Morgan, MLS(ASCP) / August 17, 2026

A magnesium blood test measures magnesium in the liquid part of your blood to help evaluate electrolyte balance, kidney function, medication effects, and causes of symptoms such as cramps, weakness, irregular heartbeat, or abnormal calcium and potassium levels.