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

Performing Laboratory

Northwell Health Laboratories

Methodology

Enzymatic

Reference Values

Males:  9-50 U/L

Females:  8-40 U/L

Test Classification and CPT Coding

82977

Physician Office Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma

Container/Tube:  Mint green-top (lithium heparin gel) tube(s)

Specimen:  1 mL of lithium heparin plasma

Transport Temperature:  Refrigerate

Collection Instructions:

Note:  1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

 

Serum

Container/Tube:  Gold-top tube(s)

Specimen:  1 mL of serum

Transport Temperature:  Refrigerate

Collection Instructions:

Note:  1. Indicate serum on request form.

2. Label specimen appropriately (serum).

Day(s) and Time(s) Performed

Monday through Sunday

Computer Interface Code

PDM # 5300140