Geisinger Medical Laboratories Test Catalog

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


Geisinger Epic Procedure Code: LAB1035             Geisinger Epic ID: 52065

Specimen type:
Serum (preferred) or plasma
Preferred collection container:
Alternate Collection Container:
3 mL lavender-top (K2 EDTA) tube
Specimen required:
2 mL frozen serum; minimum1 mL
Special notes:
Do not collect in gel tubes.

Specimen processing instructions:
Separate serum or plasma from cells and submit in a plastic screw-cap vial. Protect from light. 
Transport temperature:
Frozen. Protect from light.
Specimen stability:
Room temperature: Unacceptable. Refrigerated: Unacceptable.Frozen: 30 days
Rejection criteria:
Specimen collected in serum separator tubes. Specimen not frozen. Specimen not protected from light.

Additional information:
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
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:
Nicotinamide and Nicotinic Acid
Chromatography/Mass Spectrometry
Quest test code 91029
Clinical significance:
Nicotinic acid occurs naturally in plants and animals and is also added to many foods as a vitamin supplement.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Set up: Tues, Thurs, Sat; Report available: 3-5 days    
Performed STAT? No
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