Last Modified: 3/25/2019 1:57:32 PM

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
7 days Refrigerated
30 days Frozen

Rejection Criteria: Do not collect in a Serum Separator Tube (SST or PST)
Reference Range:

Refer to interpretive report

Critical Ranges:  
Test Comments:  
Methodology: Chromatography/Mass Spectrometry
Clinical Significance: Doxepin is a tricyclic antidepressant. Therapeutic drug levels are monitored to assist the physican assesing therapeutic response and to avoid toxicity.
Custom Panel: No


Turn Around Time: 1 to 2 days
Days Performed: Monday, Tuesday, Wednesday, Thursday, Friday
Sites Performed: Quest - Chantilly
PHL Test Code: DOXEP
EPIC Test Code: LAB146
Send Out Test Code: 894 / 826X
Alternate Test Names: Nordaxepin; Sinequan
Included Tests: Doxepine; Nordoxepin (Desmethyldoxepin)
CPT Coding: 80335

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