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Gamma-Glutamyltransferase (GGT), Plasma or Serum

Important Note

Note:  If patient’s insurance is Medicare, an Advance Beneficiary Notice of Noncoverage (ABN) may be required. See “Advance Beneficiary Notice of Noncoverage (ABN)” in “Forms” in “Special Instructions.”

Performing Laboratory

Providence Alaska Medical Center

Methodology

Enzymatic Rate, Szasz method

 

Specimen Requirements

Submit only 1 of the following specimens:
 
Plasma

Draw blood in a green-top (lithium heparin) tube(s). Spin down, separate plasma from cells, and send 2 mL (minimum volume:  0.3 mL) of lithium heparin plasma refrigerated. Avoid hemolysis.

Note:  1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

 

Serum

Draw blood in a gold-top serum gel tube(s). Spin down, separate serum from cells, and send 2 mL (minimum volume:  0.3 mL) of serum refrigerated. Avoid hemolysis.

Note:  1. Indicate serum on request form.

2. Label specimen appropriately (serum).

Reference Values

Males

0 -10 years:  6-16 IU/L

10-19 years:  7-26 IU/L

19+ years:  9-40 IU/L

Females

0 -10 years:  6-19 IU/L

10-19 years:  8-23 IU/L

19+ years:  9-35 IU/L

Stability

Room temp: 8 hours

Refrigerated: 4 days

Frozen: 2 months

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82977

Special Instructions

ETA

Estimated turnaround time 35 min