Search our extensive Laboratory Test Directory to find test codes, ordering recommendations, specimen stability information, Test Fact Sheets, and more.
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed
Days of the week the test is performed.
Wed
Reported
Expected turnaround time for a result, beginning when ARUP has received the specimen.
1-8 days
Reference Interval
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Effective Date: November 14, 2022
Therapeutic Range:
100-1000 ng/mL
Toxic:
Greater than 1000 ng/mL
Interpretive Data
May include disease information, patient result explanation, recommendations, or details of testing.
The therapeutic range is based on serum pre-dose (trough) draw at steady-state concentration. The pharmacokinetics of quetiapine are influenced by drug-drug interactions that may inhibit or induce CYP3A4 metabolism. Adverse effects to quetiapine therapy may include somnolence, hypotension, dizziness, neuroleptic malignant syndrome, tardive dyskinesia, and 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.
The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Connect Sign In
