**Note: All laboratory testing requires an authorizing physician. DHA Laboratory offers a Patient Direct Program that partners you with an authorizing physician. If you have any additional questions regarding the availability of testing, please contact our laboratory by telephone or email.**
The Magnesium RBC test is used in the evaluation of Magnesium deficiency. It can often be used to show an earlier indication of Magnesium deficiency than a standard Magnesium test can.