Vectra® DA measures the concentration of 12 serum proteins. An algorithm is applied to these concentrations to calculate a quantitate disease activity score ranging from 1 to 100. Test results are intended to aid in the assessment of disease activity in RA patients when used in conjunction with standard clinical assessment. This test is not intended or validated to diagnose RA.
Specimen Sources
Blood, ArterialBlood, CapillaryBlood, Central LineBlood, Venous
Specimen Types
Blood
Container
Gold Top Tube
Collection Instructions
Container/Tube: Gold Top Tube or Red Top Tube Specimen: 2 mL serum (1 mL min) Transport Temperature: Refrigerated Stability; 3 Days Room Temperature 14 Days Refrigerated 326 Days Frozen Collection: Separate serum from cells within 30 minutes of venipuncture
Transport Instructions
Refrigerated
Specimen Stability
3 Days Room Temperature 14 Days Refrigerated 326 Days Frozen
Methodology
Multiplex bead-based immunoassay and Meso Scale Discovery Multi-array Platform
Days Performed
TAT: 7- 9 days An order for Vectra® DA includes and requires an order for 12 biomarkers: VCAM-1, EGF, VEGF-A, IL-6, TNF-RI, MMP-1, YKL-40, Leptin, Resistin, SAA, CRP. These 12 biomarkers are required to generate the Vectra® DA test score. By ordering Vectra® DA, you are ordering all 12 biomarkers and are acknowledging that Labcorp cannot provide a Vectra® DA test result without these 12 biomarkers. Vectra® DA was validated in adults with Rheumatoid Arthritis (RA).
