Optimize drug therapy and monitor patient adherence.
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.
Gray (Potassium Oxalate/Sodium Fluoride). Also acceptable: Plain Red, Green (Sodium Heparin), Lavender (K2 or K3EDTA) or pink (K2EDTA).
Separate serum or plasma from cells within 2 hours of collection. Transfer 2 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 1 mL)
Gel separator tubes. Plasma or whole blood collected in light blue (sodium citrate). Hemolyzed specimens.
After separation from cells: Ambient: 1 week; Refrigerated: 2 weeks; Frozen: 3 years (Avoid repeated freeze/thaw cycles)
Effective November 18, 2013
|Anxiety||10-40 ng/mL (Dose: 1-4 mg/d)|
|Phobia & panic||50-100 ng/mL (Dose: 6-9 mg/d)|
|Toxic||Greater than 100 ng/mL|
Adverse effects may include somnolence, light-headedness and muscle tremors.
80346 (Alt code: G0480)
|Component Test Code*||Component Chart Name||LOINC|