Gamma Glutamyl Transferase

General Information

Method

Spectrophotometric

Reference Range

Units: U/L

Female		Male
Age	Range	Age	Range
0-	0-55	0-	0-55

Effective date: 03/01/2015

Specimen Type: Blood
Collection: HMC and UW-MT Onsite Locations:
Preferred: 4 mL blood in LIME GREEN PST tube
Also Acceptable: 4 mL blood in ORANGE RST, GOLD SST, RED TOP or GREEN TOP tube
Pediatric: 1 Full LIME GREEN MICROTAINER

Offsite Clinic or Other Locations:
Preferred: 4 mL blood in GOLD SST tube
Also Acceptable: 4 mL blood in ORANGE RST, LIME GREEN PST, RED TOP or GREEN TOP tube
Pediatric: 1 Full LIME GREEN MICROTAINER
Handling Instructions
Quantity: Requested: 1 mL serum/plasma
Minimum: 0.5 mL serum/plasma

Lab Department

Chemistry, Automated Panels(CHA)

Frequency

Daily

Available STAT?

Yes

Performing Location(s)

HMC	Chemistry, Automated 206-520-4600 325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420
UW-NW	Main Lab 206-668-1344 UW Medical Center – Northwest 1550 N 115th Street, A200 Seattle, WA 98133
FHCC	Fred Hutch Alliance Lab 206-606-1088 825 Eastlake Ave, Seattle, WA 98109
UW-MT	Chemistry, Automated 206-520-4600 Clinical Lab, Room NW220, University of Washington Medical Center, 1959 NE Pacific street, Seattle, WA 98195