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GGT (gamma glutamyltransferase)

Message
Performed in the Chemistry laboratory x5820
10.2018


Test Code
GGT


CPT Codes
82977

Preferred Specimen
Plasma from a green top (PST) tube


Minimum Volume
1 mL


Instructions
Centrifuge within 2 hours of collection


Transport Container
Green Top (PST) tube


Transport Temperature
Room temperature


Specimen Stability
2 - 8 oC: 7 days


Methodology
L-Gamma-Glutamyl-3-carboxy-4-nitroanilide substrate

Setup Schedule
This assay is performed 24 hours per day, 7 days per week


Reference Range
Both genders, < 20 years old: ≤ 50 IU/L
Male, ≥ 20 years old: ≤ 70 IU/L
Female, ≥ 20 years old: < 60 IU/L


Clinical Significance
This assay is used in the diagnosis of liver disease.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.