Magnesium, Plasma or Serum
0020039
Ordering Recommendation
 
Mnemonic
MG
Methodology
Quantitative Spectrophotometry
Performed
Sun-Sat
Reported
Within 24 hours  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Plasma separator tube or serum separator tube.  
Specimen Preparation
Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Specimens collected in EDTA, oxalate/fluoride. Hemolyzed specimens.  
Remarks
  
Stability
After separation from cells: Ambient: 1 week; Refrigerated: 1 week; Frozen: 1 year  
Reference Interval
By report (reports may vary based on instrumentation)  
Interpretive Data
 
Note
 
CPT Code(s)
83735
Components
Component Test Code*Component Chart NameLOINC
0020039Magnesium, Serum or Plasma19123-9
* 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
  • Mag
  • Mg