VENLAFAXINE

Test Documentation
Specimen Required
Draw immediately before next scheduled dose. Draw blood in a plain red-top tube. Centrifuge, separate and send 1.0 mL serum (0.4 mL minimum) refrigerated in a screw-capped plastic vial.

Rejection Criteria
SST, gross hemolysis, gross lipemia, gross icterus

Methodology
Liquid Chromatography/Tandem Mass Spectrometry

Stability
Room Temperature: 14 days; Refrigerated: 14 days; Frozen: 14 days

Reference Range
By report

Performed
Monday-Friday

Turnaround Time5-7 days
Test CodeVENLA
CPT-4 Code (s)
80299
LOINC Codes
Venlafaxine   9630-5  
O-desmethyl Venlafaxine   9630-5  
Venlafaxine + O-desmethylvenlafaxine   62849-5  

Warde
Medical
Laboratory