ARUP's Laboratory Test Directory

Magnesium, Plasma or Serum : 0020039

Mnemonic: MG

Methodology: Quantitative Spectrophotometry
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: 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.

Stability (collection to initiation of testing): After separation from cells: Ambient: 1 week; Refrigerated: 1 week; Frozen: 1 year

Reference Interval:
By report (reports may vary based on instrumentation)
CPT Code(s): 83735