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GGT
MessageCHEMISTRY
Test Code
GGT
Alias/See Also
GAMMA GLUTAMYL TRANSPEPTIDASE, GAMMA GT, GGTP
Preferred Specimen
PLASMA
Minimum Volume
1mL
Instructions
1 LI HEP(LIGHT GREEN) PST TUBE,SPIN DOWN.
Transport Container
ORIGINAL TUBE
Transport Temperature
REFRIGERATED
Specimen Stability
Room temperature: 7 days
Refrigerated (2-8°C): 7 days
Frozen (-20°C): > 1 year
Refrigerated (2-8°C): 7 days
Frozen (-20°C): > 1 year
Methodology
Enzymatic
Setup Schedule
DAILY
Report Available
DAILY
Reference Range
10.0-65.0 IUNITS/L
Clinical Significance
Elevated GGT is found in all forms of liver disease. Measurement of GGT is used in the diagnosis and treatment of alcoholic cirrhosis, as well as primary and secondary liver tumors. It is more sensitive than alkaline phosphatase, the transaminases, and leucine aminopeptidase in detecting obstructive jaundice, cholangitis, and cholecystitis. Normal levels of GGT are seen in skeletal diseases; thus, GGT in serum can be used to ascertain whether a disease, suggested by elevated alkaline phosphatase, is skeletal or hepatobiliary.
Performing Laboratory
WHITE RIVER JUNCTION VT VA- CHEMISTRY 802-295-9363 EXT: 5518, 5519
