Test Details
Mnemonic
GALAC
Ordering Code
3502980
CPT-4 Code(s)
82759
Specimen Information
Collect
Lavender EDTA
Specimen Preparation
Send 4.0 mL whole blood refrigerated.
Alternate Specimen
Green top sodium heparin, yellow ACD A
Minimum Volume
2.0 mL
Transport Temperature
Refrigerated
Rejection Criteria
Gross hemolysis
Stability
Room temperature: 72 hours
Refrigerated: 10 days
Frozen: Unacceptable
Refrigerated: 10 days
Frozen: Unacceptable
Methodology
Enzyme reaction followed by Liquid Chromatography/Tandem Mass Spectrometry
Reference Range
≥0.7 nmol/h/mg of hemoglobin
Performing Laboratory
MAYO
New York DOH Approval Status
Yes