Unit Code 8677:
Gamma-Glutamyltransferase (GGT), Serum
Specimen Required
Draw blood in a plain, red-top tube(s) or a serum gel tube(s).
Spin down and send 0.5 mL of serum refrigerated.
Note: Patient's age and sex are required on request form
for processing.
Transport Temperature
Refrig\Frozen OK\Ambient NO
Reject Due To
Specimens Other Than: Serum, plasma (heparin)
Anticoagulants Other Than: Heparin, EDTA
Hemolysis: Yes
Thawing: Warm Reject; Cold Ok
Lipemia: No
Day(s) and Time(s) Test Performed
Monday through Sunday Continuously


