Magnesium Lvl (MG)

Department: Chemistry
Test Synonym(s): LAB103, MG, Magnesium Blood, Magnesium Level
CPT Codes: 83735
Methodology: Enzymatic: Isocitrate dehydrogenase
Reference Range: 0 - <5mo: 1.5-2.2 mg/dL; 5mo - <6yrs: 1.7-2.3 mg/dL; 6yrs - <20yrs: 1.7-2.2 mg/dL; 20yrs - 150yrs: 1.6-2.6 mg/dL
Tube Type: Light green top PST (Lithium Heparin with gel)
Specimen: Plasma
Alternate Specimen: Red top (no gel)
Pediatric Requirements: 1 light green top microtainer
Volume: 1 mL plasma
Minimum Volume: 1 light green top
Temperature: Separate within one hour and store at 2-8C until delivery
Stability: Room temperature: 7 days; Refrigerated: 7 days; Frozen: 1 year
Reasons for Rejection: Hemolysis, improper collection
Days Performed: Daily
Times Performed: Continuous
TAT: STAT: 1 hour; ROUTINE: 2 hours after receiving in lab

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