Laboratory Test Information Guide

Details for Gamma Glutamyl Transferase,Plasma

Test Name: Gamma Glutamyl Transferase,Plasma
Alternate Name(s): GGT
GGTP
Laboratory: Core
Specimen Type: 4.5 mL Green (Lithium Heparin) top Vacutainer

Pediatric:
0-2 yrs:Green top Microtainer (BD 365985)<
2-10 yrs. 3 mL Green top
Collection Information: Serum from a 5 mL Gold top or 6 mL Red top Vacutainer tube is also acceptable.

The minimum volume required for pediatric samples is 0.2 mL.
Requisition: GENERAL LABORATORY REQUISITION
Test Schedule: As required
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
4 hours
Stat
 
 
Reference Range: 
0-5 days:
<185 U/L
6 days-6 months:
<204 U/L
Males >6 months:
<61 U/L
Females >6 months:
<31 U/L
Effective Date: 2009-08-07
Revised Date: 2012-10-05
Critical Value:  
Interpretive Comments: Pediatric values may be high, falling to adult levels at puberty. Elevated in obstructive jaundice, intrahepatic cholestasis and some liver metastases. May be normal or near normal with hepatitis or cirrhosis; also increased by alcohol, anticonvulsants and barbiturates.
Special Processing:  
Comments: Hemolysis may affect results
Method of Analysis: Enzymatic rate
Critical Information Required:  
Storage & Shipment:  
System Codes: 
Cerner
GGT
 
Referred To:  

Questions? Comments? Contact Laura Gopaul