RBC, Magnesium

The Magnesium (RBC) test measures the level of magnesium within red blood cells. Magnesium is an essential mineral involved in numerous bodily functions, including muscle and nerve function, blood glucose control, and bone health. This test provides a more accurate reflection of magnesium status in the body compared to serum magnesium levels, particularly in cases of chronic deficiency or supplementation.

Sample type:

Whole Blood

Preparation:

You do not need to do anything special to prepare for the sample collection. Fasting is not required for this test.

Test type:

In person or via trained mobile phlebotomist

Biomarkers

Magnesium, RBC

Symptoms or conditions analyzed by this test

The Magnesium (RBC) test is used to assess magnesium levels inside red blood cells, providing insight into long-term magnesium status and diagnosing deficiencies or excesses. Low magnesium levels can lead to symptoms such as muscle cramps, weakness, and irregular heartbeats, while high levels may cause nausea, vomiting, and cardiac issues. The test is particularly useful in evaluating magnesium status in chronic conditions or during long-term supplementation.

Question 1