Sign in →

Test Code GGT Gamma-Glutamyltransferase (GGT), Plasma or Serum

Additional Codes

EPIC:  LAB85

Methodology

Enzymatic Rate
Used in the diagnosis and treatment of liver diseases such as alcoholic cirrhosis and primary and secondary liver tumors.

Performing Laboratory

St. Joseph Hospital

Specimen Requirements

Submit only 1 of the following specimens:

Preferred:  Plasma

Draw blood in a light green-top (lithium heparin gel) tube(s). (Hemolyzed specimen is not acceptable.) Spin down, separate plasma from cells within 2 hours of draw, and send 1 mL of lithium heparin plasma refrigerated.

Note:  1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

 

Alternate:  Serum

Draw blood in a plain, red-top tube(s) or a serum gel tube(s). (Hemolyzed specimen is not acceptable.) Spin down, separate serum from cells within 2 hours of draw, and send 1 mL of serum refrigerated.

Note:  1. Indicate serum on request form.

2. Label specimen appropriately (serum).

Reference Values

Males:  8 - 61 U/L
Females:  5 - 36 U/L

Day(s) Test Set Up

Monday through Sunday

Available STAT

Test Classification and CPT Coding

82977