31.07.2015 Views

Rheumatoid Arthritis

Rheumatoid Arthritis

Rheumatoid Arthritis

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Recommendation 3TestingRA is a clinical diagnosis. There are no tests that are completely reliable in making the diagnosis.Tests are primarily used to monitor the disease or exclude other types of arthritis.TESTS DIAGNOSTIC VALUE DISEASE ACTIVITY MONITORING COST (as of 2005)ErythrocyteSedimentation Rate(ESR) or C-ReactiveProtein (CRP)<strong>Rheumatoid</strong> Factor(RF)AntinuclearAntibody (ANA)Indicate only inflammatory process- very low specificityRF has low sensitivity and specificityfor RA. Seropositive RA has a worseprognosis than seronegative RA.Positive in cases with severe RA,systemic lupus erythematosus (SLE)or other connective tissue disorders(CTD).Most patients with positive ANA donot have RA, SLE, or CTD.Negative ANA usually excludes SLE.Often useful. ESR elevated in manybut not all with active inflammation.May be useful in monitoring diseaseactivity and response to treatment.ESR $2.46CRP $24.94No value $11.49No value - do not repeat $33.40X-RaysDiagnostic erosions rarely seen indisease of

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!