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Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed
Days of the week the test is performed.
Wed, Sat
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.
Therapeutic range (Venlafaxine and o-Desmethylvenlafaxine)
195-400 ng/mL
Toxic range (Venlafaxine and o-Desmethylvenlafaxine)
Greater than or equal to 800 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. Adverse effects to venlafaxine therapy may include nausea, vomiting, dizziness, tremor and blurred vision.
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.
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