Specimen Collection Requirements
Timing of specimen collection: Pre-dose (trough) draw - at steady state concentration.
Serum or Plasma, one 5 mL plain red top tube, also acceptable: lavender (EDTA) top tubes
Separate serum or plasma from cells within 2 hours of collection.
0.5 mL (Whole Blood 1.2 mL minimum draw)
Whole blood, gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution) top tubes
From collection to initiation of testing, AFTER SEPARATION FROM CELLS: Ambient: 5 weeks; Refrigerated: 2 months; Frozen: 2 months
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Therapeutic range not established.
Thursday, March 14, 2019 12:50:30 PM
Client Services: 503-413-1234