Specimen Collection Requirements
Fasting specimen is preferred.
Serum, one 5.0 mL gold (SST) top tube, also acceptable 7.0 mL plain red top tube
Allow serum tubes to clot completely at room temperature (minimum - SST: 30 minutes, red top tubes: 60 minutes). Centrifuge and separate serum from cells ASAP.
0.3 mL Serum, (Whole Blood 0.8 mL minimum draw)
Frozen (at or below -20°C)
Grossly hemolyzed specimens, plasma
AFTER SEPARATION FROM CELLS: Room Temperature (20-25°C): 8 hours; Refrigerated (2-8°C): 24 hours; Frozen (at or below -20°C): 1 month
Reference range applies to fasting specimens. To convert to nmol/L, multiply ng/mL by 0.33.
Thursday, January 5, 2017 03:40:45 AM
Client Services: 503-413-1234