Optimize drug therapy and monitor patient adherence.
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Mon, Wed, Fri
Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.
Plain red. Also acceptable: Lavender (K2 or K3EDTA) or pink (K2EDTA).
Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Whole blood. Gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution).
After separation from cells: Ambient: 4 hours; Refrigerated: 1 week; Frozen: 1 month (avoid repeated freeze/thaw cycles)
Effective February 16, 2021
|Therapeutic Range:||5.0-20.0 ng/mL|
|Toxic:||Greater than 50 ng/mL|
The therapeutic range is based on serum pre-dose (trough) draw at steady-state concentration. Adverse effects may include drowsiness, blurred vision, tardive dyskinesia, tachycardia, hypotension and muscular rigidity.
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Laboratory Developed Test (LDT)
|Component Test Code*||Component Chart Name||LOINC|