Niacin (Vitamin B3)
Order Name
NIACIN
Test Number: 3657450
Revision Date 08/08/2023
Test Number: 3657450
Revision Date 08/08/2023
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Niacin (Vitamin B3)
|
High Performance Liquid Chromatography | 18244-4 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1.5 mL (1 mL) | Serum | Clot Activator (Red Top, No-Gel) | Frozen |
| Alternate 1 | 1.5 mL (1 mL) | Plasma | EDTA (Lavender Top) | Frozen |
| Instructions | Notes: 1 mL each tube (Note: This volume Does NOT allow for repeat testing). Specimen Type: Red-top tube or lavender-top (EDTA) tube Specimen Storage: FREEZE Specimen Collection: Transfer the serum into a LabCorp PP transpak frozen purple tube with screw cap(LabCorp ID 049482). The specimen should be FROZEN immediately and maintained frozen until tested. To avoid delays in turnaroud time when requesting multiple test on frozen specimens, PLEASE SUBMIT SEPARATE FROZEN SPECIMEN FOR EACH TEST REQUESTED. Include the patient's age on the request form. Specimen Stability: Ambient: Unstable, Refrigerated : Unstable, Frozen: 14 days |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 4-10 Days |
| Performing Labcorp Test Code | 070115 |
| Notes | Labcorp Test Code: 070115 |
| CPT Code(s) | 84591 |
| Lab Section | Reference Lab |