Optimize drug therapy and monitor patient adherence.
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Plain red. Also acceptable: Lavender (K2 or K3EDTA) or pink (K2 EDTA).
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).
Ambient: 1 week; Refrigerated: 1 month; Frozen: 1 month
The following therapeutic ranges and toxic values have been suggested but have not been validated.
Adverse effects may include somnolence, dizziness, fatigue, constipation, weight gain.
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.
|Predose Draw (Trough) - Preferred|
|Therapeutic range||70-170 ng/mL|
|Toxic:||Greater than 1000 ng/mL|
|Peak Draw (1.5 hour post dose) - Not recommended
|Therapeutic range||100-1000 ng/mL|
|Toxic:||Greater than 1500 ng/mL|
Laboratory Developed Test (LDT)
80342 (Alt code: G0480)
|Component Test Code*||Component Chart Name||LOINC|
- quetiapine blood level
- seroquel blood level