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RF by Turb; Anti-CCP (Cyclic Citrullinated Peptide) Ab, IgG & IgA; 14.3.3 eta; Anti-CEP1 Ab, IgG; Anti-Sa Ab; Anti-CEP1 (citrullinated alpha-enolase 1) Ab; Anti-Sa (citrullinated vimentin) Ab; Anti-CarP (carbamylated protein) Ab
10 - 12 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
For more information, please view the literature below.
1 mL (Note: This volume does not allow for repeat testing.)
Red-top tube or gel-barrier tube
Separate serum from cells within one hour of collection. Transfer to a plastic transport tube before shipping.
Grossly hemolyzed; bacterial contamination; lipemic, icteric, non-serum specimen types
The RAdx6 is a novel comprehensive diagnostic and prognostic panel for rheumatoid arthritis available exclusively at RDL. It combines 4 novel markers (14-3-3n, anti-CEP-1 anti-Sa and anti-CarP) with 2 traditional marker anti-CCP and RF) to not only enhance the diagnosis of RA in early or established disease, but also to help predict disease severity. If 14-3-3n and/or anti-Sa positivity is present, the disappearance or decrease of these antibodies with treatment is associated with less radiographic progression. In pre-clinical RA, positivity of anti-CEP-1 along with anti-CCP antibodies significantly raises the risk of imminently developing clinical RA.
Anti-CarP may predict the development of RA independently of Anti-CCP and may be present years before the onset of symptoms in RA. Anti-CarP may confer a 10% incremental benefit in identify early RA and is associated with more active disease and higher risk of developing joint erosions.
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.
Enzyme-linked immunosorbent assay (ELISA)
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|520304||RAdx6 Profile||520226||Anti-CCP Ab, IgG & IgA (RDL)||Units||57093-7|
|520304||RAdx6 Profile||520093||Rheumatoid Factor by Turb RDL||IU/mL||11572-5|
|520304||RAdx6 Profile||520262||14.3.3 ETA, Rheum. Arthritis||ng/mL||75880-5|
|520304||RAdx6 Profile||520263||Anti-CEP-1 Ab, IgG (RDL)||Units||96561-6|
|520304||RAdx6 Profile||520264||Anti-Sa Ab, IgG (RDL)||Units||54022-9|
|520304||RAdx6 Profile||520317||Anti-CarP Ab||Units||Pending|
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