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Test Code GGT Gamma-Glutamyltransferase (GGT), Serum or Plasma

Performing Laboratory

Huntsville Hospital Laboratory

Methodology

Gamma-Glutamyl-p-Nitroanilide

Specimen Requirements

Container/Tube:

Preferred: Lithium heparin (light green-top)

Acceptable: Serum Gel

 Draw blood from a fasting patient, spin down and send 1 mL (pediatric:  0.2 mL) of plasma or serum.

Reference Values

 

Age

Male (U/L)

Female (U/L)

0 – 5 m

12 – 122

15 – 132

6 – 11 m

1 – 39

1 – 39

1 – 12 years

3 – 22

4 – 22

13 – 18 years

2 – 42

4 – 24

>18 years

11 – 49

7 – 32

 

Day(s) Test Set Up

Monday through Sunday

CPT Coding

82977

LOINC Coding

Test Name LOINC Code

Gamma-Glutamyltransferase (GGT), Serum or Plasma

2324-2

 

Specimen Stability

 

Specimen Type

Temperature

Time

Plasma,lithium heparin / Serum

RT, spun

7 days
 

Refrigerated, spun

7 days