Optimize drug therapy and monitor patient adherence.
Quantitative Liquid Chromatography/Tandem Mass Spectrometry
Mon, Thu, Sat
Serum Pre-dose (Trough) Draw - At a Steady State Concentration or Plasma Pre-dose (Trough) Draw - At a Steady State Concentration in Plain Red, Lavender (K2EDTA), Lavender (K3EDTA), or Pink (K2EDTA).
Separate from cells ASAP or 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 (Sodium Citrate), or Yellow (SPS or ACD Solution).
Ambient: 48 hours; Refrigerated: 5 days; Frozen: 2 months
Effective November 12, 2018
|Therapeutic Range||0.5-2.0 µg/mL|
|Toxic Level||Greater than 2.0 µg/mL|
The therapeutic range is based on serum pre-dose (trough) draw at steady-state concentration. Toxic concentrations may cause hypotension, tremor and cardiac abnormalities.
Laboratory Developed Test (LDT)
|Component Test Code*||Component Chart Name||LOINC|
- Mexitil blood level