Sign in →

Epic Code LAB85 Gamma Glutamyl Transferase (GGT) Level

Test Name Alias

GGT Blood Level | 8146

Interface Order Alias

10043

Collection Instructions

Specimen Collection: Blood

 

Container(s): 4.5 mL Mint Green Top (Lithium Heparin Gel) or 5.0 mL Gold Top (Serum Separator-SST Gel)

Preferred Volume to Collect: 4.5 mL

Minimum Volume to Collect: 1.0 mL

Neonate Volume to Collect: 0.5 mL

Capillary collect ok? Yes

Microtainer acceptable: Yes

 

Collection Instructions:

  • After collection, gently invert tube 8-10 times.
  • Specimen should be processed within 2 hours – See Processing Instructions.

Processing Instructions (Laboratory, Outpatient or Off-site collection)

Processed Specimen: Plasma or Serum

Centrifuge/Spin: Yes

Aliquot: Yes

 

Processing Instructions:

  • Plasma is preferred specimen type
  • Green Tube/Plasma: Centrifuge after collection.
  • Gold Tube/Serum: Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.

Transport Temperature: Refrigerate

Specimen Stability

Ambient: 12 hours

Refrigerate: 72 hours

Frozen: aliquot plasma/serum for longer storage

Laboratory Retention: 72 hours

Test Frequency

Available daily, usual TAT 1 day.

Reference Range

Male/Female
0 Minutes up to 8 Days: 25 – 250 IU/L
8 Days up to 1 Month: 12 – 125 IU/L
1 Month up to 3 Months: 8 – 80 IU/L
3 Months up to 16 Years: 5 – 35 IU/L
16 Years up to 150 Years: 10 – 45 IU/L

Performing Department

Chemistry

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI

Methodology

Enzymatic

CPT

82977

CDM Code

3018297701

Epic Test ID

1230100716

LOINC

GGT: 2324-2

Reviewed Date

3/7/2024