Doxepin

Last Modified: 3/23/2022 10:10:02 AM


Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  
Specimen Requirements: 3.0 mL Serum from a Red Top Tube in a Plastic Vial
Collection Instructions: Collect at steady-state trough concentration Specimen should be collected > 12 hours after dose

Centrifuge and separate from cells immediately
Minimum Volume: 1.5 mL Serum
Transport & Storage: Temperature/Stability:

5 days Ambient (Transport)
7 days Refrigerated
30 days Frozen
Rejection Criteria: Gross Hemolysis • Do not collect in a Serum Separator Tube (SST or PST)
Reference Range: Total 110-250 mcg/L
Critical Ranges:  
Test Comments:  
Methodology: Chromatography/Mass Spectrometry
Clinical Significance: Doxepin is a tricyclic antidepressant. Therapeutic drug levels are monitored to assist the physician assessing therapeutic response and to avoid toxicity.
Documentation:  
Custom Panel: No

PRODUCTION SCHEDULE

Turn Around Time: 1 to 2 days
Days Performed: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Quest - Chantilly
PHL Test Code: MSOT
EPIC Test Code: MISC
Send Out Test Code: 826
Alternate Test Names: Adapin®; Desmethydoxepin; Desmethyldesipramine; Doxepin, Trough; Nordaxepin; Sinequan; Sinequan®; Zonalon
Included Tests: Doxepine; Nordoxepin (Desmethyldoxepin)
CPT Coding: 80335

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