Venlafaxine and Metabolite, Serum or Plasma VENMET

Method(s) Quantitative Liquid Chromatography - Tandem Mass Spectrometry
Specimen Required
Collect One 6 mL plain red top tube. Also acceptable: One lavender (EDTA) or pink (K2EDTA) top tube.
Transport 1 mL serum or plasma at 2-8°C (Min: 0.5 mL).
Remarks

Remove serum or plasma from cells within 2 hours.

Stability Ambient: 2 weeks; Refrigerated: 2 weeks; Frozen: 2 weeks.
Unacceptable Conditions

Whole blood, Gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution) top tubes.

Schedule Sun, Wed
Billing Code 5011566
CPTCode 80338
Notes Additional required information: 1. DOSE - List drug amount and include the units of measure; 2. ROUTE - List the route of administration (IV, oral, etc); 3. DOSE FREQUENCY - Indicate how often the dose is administered (per day, per week, as needed, etc.); 4. TYPE OF DRAW - Indicate the type of blood draw (peak, trough, random, etc.)
Preferred Specimen Collection Device(s)
Reference Interval
Therapeutic range -
Total (venlafaxine and o-desmethylvenlafaxine)
195-400 ng/mL
Toxic rangeNot well established
No Appointment Necessary
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12 Patient Service Centers in Central New York.

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