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RHEUMATOID ARTHRITIS-DIAGNOSIS

Rheumatology

RHEUMATOID ARTHRITIS-DIAGNOSIS

RA can be diagnosed when all of the following are present:
1. Inflammatory arthritis (from 1-10 joints)
2. Duration > 6 weeks
3. RF and/or anti-CCP Ab
4. Increased ESR or CRP
5. Other causes must be excluded (especially if symptoms have been present for < 6 weeks), such as SLE, Sjogren's, overlap syndromes, sarcoidosis, and viral reactive arthritis (hepatitis B and C, parvovirus B19).

Seronegative RA (less severe disease) is diagnosed when patients meet other criteria but lack both RF and anti-CCP.


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REFERENCES

1. Wilkinson, I. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press.
2. Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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