Specimen Requirements
Title
Doxepin, Sinequan (Includes Nordoxepin)
Specimen Requirement
Collect red top or lavender EDTA, centrifuge and transfer 1.0 mL serum/plasma to a screw top plastic vial, indicate sample type on vial and send.
Do not use gel barrier tube.
Methodology
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Stability
Room Temp: 14 days, Refrigerated: 14 days, Frozen: 14 days
Reference Range
The reference range is determined by the performing laboratory and will show on the report.
Turnaround
3-5 days
Clinical Use
Evaluate toxicity; monitor therapeutic levels
Test Code
DOXW