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Geisinger Medical Laboratories Test Catalog
VITAMIN B3 |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB1035 Geisinger Epic ID: 52065 | |
SPECIMEN COLLECTION |
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Specimen type: |
Serum (preferred) or plasma | |
Preferred collection container: |
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Alternate Collection Container: |
3 mL lavender-top (K2 EDTA) tube
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Specimen required: |
2 mL frozen serum; minimum1 mL | |
Special notes: |
Do not collect in gel tubes. | |
| SPECIMEN PROCESSING |
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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. | |
TEST DETAILS |
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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): |
84591 | |
| 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 | |
Methodology: |
Chromatography/Mass Spectrometry |
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Synonyms: |
Quest test code 91029
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Clinical significance: |
Nicotinic acid occurs naturally in plants and animals and is also added to many foods as a vitamin supplement. | |