Test Overview
Method
Ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS)
Result Included
Venlafaxine; Norvenlafaxine; Venlafaxine + Norvenlafaxine
Aliases/Synonyms
O-Desmethylvenlafaxine
Specimen
Specimen Type
SerumPlasma (EDTA)
Important Note: TEST ID: VENLA S
Non-interfaced clients should specify the Test ID VENLA S to order this test.
A similar test is offered with faster turnaround time by a non-Canadian supplier lab: Venlafaxine, Serum
Containers
Preferred Containers
Lavender top (EDTA)
Acceptable Containers
Red top (no additive)
Volume
Sample Volume
1 mL
Minimum Volume
0.3 mL
Collection & Handling
Handling Information
Store and send cold or frozen.
Stability
| Refrigerated | Frozen |
|---|---|
| 2 weeks | 1 month |
Performance & Interpretation
Turnaround Time
20 days
Results
Name
Units
Reference Range
Conversion
-
Norvenlafaxineµmol/L
Comment
Reported detection limit: 0.030 µmol/L
-
Venlafaxineµmol/L
Comment
Reported detection limit: 0.030 µmol/L
-
Venlafaxine + Norvenlafaxineµmol/L0.36 - 1.5
Comment
Reported detection limit: 0.030 µmol/L
Referral Location
Canada
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| VENLA S | Norvenlafaxine (metabolite) | 23976 | umol/L |
| Venlafaxine | 23978 | umol/L | |
| Venlafaxine+Norvenlafaxine | 23980 | umol/L |
Test Version
Last Updated
2023-03-21