Test directory: Magnesium, RBC

Ordering Code 6212
Test Name Magnesium, RBC
Alias Mg RBC
Preferred Specimen RBCs
Preferred Container Trace Element EDTA (Royal Blue)
Optimum Volume 2 mL
Handling Instructions Centrifuge whole blood and separate RBCs from plasma within 2 hours of collection. Remove all plasma. Removal of some
RBCs is okay. Transfer 2 mL RBCs to an ARUP trace element- free transport tube available through DLS Supplies at 589-5171 or 589-5198.
Transport Requirements Oahu: Ambient
Airline: Ambient
Specimen Stability Ambient: 2 Weeks
Refrigerated: 2 Weeks
Frozen: Not Stable
Rejection Criteria Clotted, Grossly hemolyzed, Specimens collected in tubes other than royal blue (EDTA), Non-Trace Element aliquot
Avail. Stat NO
Analytic Time Up to 7 Days
Methodology Quantitative Inductively Couple Plasma/Mass Spectrometry
Reference Lab  ARUP Laboratories

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Magnesium, RBC ALL 3.6-7.5 3.6-7.5 mg/dL

RBC magnesium...
RBC magnesium results reflect the intracellular stores and general homeostasis of magnesium. Results may be falsely low if RBCs in the submitted specimen are lysed or not promptly separated from plasma

RBC magnesium concentration is reported as milligrams per deciliter (mg/dL). To convert concentration to millimoles per liter (mmol/L), divide the result by 2.43

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA-certified laboratory and is intended for clinical purposes
Note1

Note1:


RBC magnesium results reflect the intracellular stores and general homeostasis of magnesium. Results may be falsely low if RBCs in the submitted specimen are lysed or not promptly separated from plasma

RBC magnesium concentration is reported as milligrams per deciliter (mg/dL). To convert concentration to millimoles per liter (mmol/L), divide the result by 2.43

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA-certified laboratory and is intended for clinical purposes
.