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Mayo Clinic Laboratories

Epic Test Code LAB85 Gamma Glutamyl Transferase

Performing Location(s)

BMC

Synonyms

GGT; g-glutamyl transferase

Specimen Type

Serum

Preferred Container

Gold or Red top

Minimum Volume to Submit for Testing

0.5 mL Serum or Plasma

  • Multiple test can be performed from this volume. For question please contact the lab at 547-3975

Transportation Needs

 Deliver specimen to laboratory within 1 hour of collection if unspun. If not possible see "storage Requirements". 

Storage Requirements

Sample tubes should be centrifuged within 2 hours of collection 

Gold tops  DO NOT ALIQUOT

Aliquot Red tops

See Causes of Rejection for temperature requirements.

Causes for Rejection

Mislabeled or unlabeled specimen
Less than 50% draw for Vacutainer tubes

 > 1 month refrigerated 
 > 24 hours room temperature
 > 1 year Frozen
Hemolysis > 350 mg/dL HgB
Lipemia > 1000 mg/dL Trig
Bilirubin > 40 mg/dL Bili
NaF

Reference Values

Population Units Reference Range
Less than 1 week old U/L 8 - 260
> 1 week old U/L 9-64

 

Days of Analysis

All

Available STAT

Yes

Methodology

Beckman AU/Dx Series

CPT Code

82977

Last Updated

27-NOV-24 MS