Magnesium, RBC
0092079
Ordering Recommendation
 
Mnemonic
MG RBC
Methodology
Quantitative Inductively Coupled Plasma-Mass Spectrometry
Performed
Mon, Wed-Sat
Reported
1-3 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Royal blue (EDTA).  
Specimen Preparation
Centrifuge whole blood and separate RBCs from plasma within 2 hours of collection. Transfer 2 mL RBCs to an ARUP Trace Element-Free Transport Tube (ARUP supply #43116). Available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. (Min: 0.6 mL)  
Storage/Transport Temperature
Room temperature. Also acceptable: Refrigerated.  
Unacceptable Conditions
Frozen. Clotted or grossly hemolyzed specimens.  
Remarks
  
Stability
After separation from plasma: Ambient: 1 week; Refrigerated: 2 weeks; Frozen: Unacceptable  
Reference Interval
1.5-3.1 mmol/L  
Interpretive Data
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.

See Compliance Statement B: www.aruplab.com/CS
Statement B: This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.
 
Note
 
CPT Code(s)
83735
Components
Component Test Code*Component Chart NameLOINC
0092080Magnesium, RBCs2597-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Intracellular Magnesium
  • MgRBCs