Doxepin and Metabolite, Serum or Plasma
Order Name
DOXEPIN
Test Number: 4006450
Revision Date 12/12/2022
Test Number: 4006450
Revision Date 12/12/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Doxepin Level
|
Quantitative Liquid Chromatography/Tandem Mass Spectrometry | 3579-0 |
|
Nordoxepin Level
|
Quantitative Liquid Chromatography/Tandem Mass Spectrometry | 3862-0 |
|
Doxepin + Nordoxepin Total
|
Calculation | 3582-4 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.3 mL) | Serum | Clot Activator (Red Top, No-Gel) | Room Temperature |
| Alternate 1 | 1 mL (0.3 mL) | Plasma | Lithium Heparin (Dark Green Top / No-Gel) | Room Temperature |
| Alternate 2 | 1 mL (0.3 mL) | Plasma | EDTA (Lavender Top) | Room Temperature |
| Instructions | Notes: 0.3 mL (Note: This volume Does NOT allow for repeat testing.) Specimen Type: Red-top tube, lavender-top (EDTA) tube OR green-top (heparin) tube. DO NOT USE A GEL-BARRIER TUBE. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Depending on the specimen volume and storage time, the decrease in drug level due to absorption may be clinically significant. Specimen Storage: Room Temperature Specimen Collection: Transfer separated serum or plasma to a plastic transport tube. Specimen Stability: Ambient: 14 days, Refrigerated : 14 days, Frozen: 14 days |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 3 - 5 days on 3rd shift; reported within one working day. |
| Performing Labcorp Test Code | 007609 |
| Notes | Labcorp Test Code: 007609 |
| CPT Code(s) | 80335 (Alt: G0480) |
| Lab Section | Reference Lab |