Search results for: 'magnesium serum'
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Magnesium, Red Blood Cell (RBC) Content$69
Learn MoreA Magnesium RBC test can provide an earlier indicator of magnesium deficiency that a standard magnesium blood test. When levels are low, the body will pull magnesium from the cells to keep blood levels normal. In this case, a magnesium blood test may show normal levels while a magnesium RBC test will give a more accurate result.