Specimen Collection Requirements
Measure at least 2 weeks after initiating treatment.
Serum or Plasma, one 10 mL plain red top tube, also acceptable: lavender (EDTA) top tube
Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an aliquot tube
Whole blood, gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution) top tube.
AFTER SEPARATION FROM CELLS: Ambient: 2 days; Refrigerated: 1 week; Frozen: 1 month, avoid repeated freeze/thaw cycles
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Thursday, March 14, 2019 12:50:42 PM
Client Services: 503-413-1234