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Test Code GGT Gamma Glutamyl Transpeptidase

Alias

GGT

Collection Method

Venous Collection

Container

Light Green Lithium Heparin tube

Instructions/Special Handling

None

Preferred Specimen

Light Green (Lithium Heparin) Plasma

Acceptable Specimes

  • Serum
    • Gold SST tube
    • Red tube
  • Plasma
    • Light Green lithium heparin
    • Lavender EDTA

Units

Units/L

Reference Ranges

Males:  <60 U/L

Females:  <40 U/L

Critical Values

N/A

Reasons for Rejection

Hemolysis N/A
Icterus N/A
Lipemia N/A
Other QNS, Contaminated, Improperly labeled, Improper specimen type

 

Specimen Stability

Ambient (15-25°C) 7 days
Refrigerated (2-8°C) 7 days
Frozen (-20°C) 1 year

 

Performing Site

Boone Health Laboratory

Performance Information

Days/Times Performed Daily 24/7
Expected Turn around Time Same day
Methodology/Method Description Roche Cobas - Enzymatic colorimetric assay

CPT Code(s)

82977

CMS National Coverage Policy - GGT

Panel Components

N/A