Geisinger Medical Laboratories Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  


Geisinger Epic Procedure Code: LAB2196             Geisinger Epic ID: 21987

Specimen type:
Serum (preferred) or plasma.
Preferred collection container:
Alternate Collection Container:
6 mL pink-top K2 EDTA tube
4 mL green/green-top (sodium heparin) tube
3 mL green/black top lithium heparin tube
Specimen required:
3 mL aliquot of serum (preferred) or plasma; minimum 1.5 mL.
Special notes:
Do not use serum separator (gel barrier) tubes.
Patient preparation:
Collect as a trough just prior to next dose or at least 12 hours after last dose.

Specimen processing instructions:
Centrifuge and immediately separate serum or plasma specimens from the cells into clean, plastic, screw-capped vial(s). 
Transport temperature:
Room temperature (preferred). Refrigerated or frozen specimen also acceptable.
Specimen stability:
Room Temperature: 5 days. Refrigerated: 7 days. Frozen: 1 month.
Rejection criteria:
Specimens collected in serum-separator tubes. Gross hemolysis.

CPT code(s):
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Doxepin, Nordoxepin and Total
Chromatography/Mass Spectrometry
Zonalon, desmethyldesipramine, Sinequan®,Adapin®,Nordoxepin, Desmethydoxepin
DOXEP, Quest test code 826

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Monday-Saturday morning. Report available: 3 days.    
Performed STAT? No
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