Magnesium, Blood Serum Test

A magnesium blood serum test measures the amount of magnesium in the blood. Magnesium is an essential mineral that plays a key role in many bodily functions, including nerve and muscle function, blood sugar regulation, and bone health.

Low levels of magnesium in the blood can lead to symptoms such as muscle cramps, weakness, fatigue, and abnormal heart rhythms. High levels of magnesium can also cause symptoms such as nausea, vomiting, and diarrhea.

A magnesium blood serum test is typically ordered by a healthcare provider if they suspect a deficiency or excess of magnesium in the body. The test involves drawing a blood sample from a vein in the arm, which is then sent to a laboratory for analysis.

It is important to follow any fasting instructions provided by your test provider before the test. Results from the test can help guide treatment decisions, such as adjusting diet or taking magnesium supplements.