Test Code GGT Gamma-Glutamyltransferase (GGT), Plasma or Serum
Methodology
Kinetic Procedure
Performing Laboratory
Decatur Morgan Hospital-Decatur Campus/Parkway Campus
Specimen Requirements
Submit only 1 of the following specimens:
Plasma
Draw blood in a green-top (lithium heparin) tube(s). Spin down and send 1 mL (pediatric: 0.2 mL) of lithium heparin plasma.
Note: 1. Indicate plasma on request
form.
2. Label specimen appropriately (plasma).
Serum
Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 1 mL (pediatric: 0.2 mL) of serum.
Note: 1. Indicate serum on request
form.
2. Label specimen appropriately (serum).
Reference Values
Males
0-6 days: 0-270 U/L
>6 days: 11-50 U/L
Females
0-6 days: 0-270 U/L
>6 days: 7-32 U/L
Test Classification and CPT Coding
82977