GAMMA GLUTAMYL TRANSFERASE
Specimen Collection Requirements
Serum, one 5.0 mL gold (SST) or 7.0 mL red top tube
Allow serum to clot completely at room temperature (minimum: 30 minutes). Centrifuge and separate serum from cells ASAP.
Grossly hemolyzed or specimens collected in heparinized tubes
AFTER SEPARATION FROM CELLS: Ambient (20-25°C): 24 hours; Refrigerated (2-8°C): 7 days; Frozen (at or below -20°C): 1 month
Samaritan Health Services Laboratories
MALE: 8-61 U/L
Age adjusted ranges.
Thursday, January 5, 2017 03:42:12 AM