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Laboratory: Clinical Biochemistry  (AUTOMATED)
Test Name:
GAMMA GLUTAMYL TRANSFERASE (GGT) - (P)
Test Code: GGT
Clinical Information:
Description:  GGT testing may be used in diagnosis and monitoring of hepatobiliary disease and determining cause of elevated alkaline phosphatase (normal GGT when ALP elevated due to skeletal disease).
Collection Devices:
Specimen Required:


Plasma: 2.0 mL
Pediatric Plasma: 0.2 mL

Specimen Stability:
Ambient: 7 days 

Refrigerated: 7 days 

Frozen: 1 year at -20°C

Referral:
Serum: 2.0 mL

Shipping & Storage: Samples must be transferred to an aliquot tube and stored/shipped

·       Refrigerated if off-site testing to be performed within 24 hours of collection

·       Frozen if testing to be performed after 24 hours
 

110-10-05 Serum Plasma Separation Procedure and Transport

Requisition:
Reference Values:
AgeMale Female
0 - <15d

                       17 – 175 U/L                            

15 d - <1y  

  5 – 101 U/L

1 - <11y 

  4 – 12 U/L

11 - <19y

4 - 16 U/L

≥19y

 <60 U/L

<40 U/L

Method of Analysis:Enzymatic colorimetric assay 
Availability:
Stat or Routine
See Also:
More Information: