RA is best diagnosed by?: (A) IgA RF\/, (B) IgG RF\/, (C) IgM RF\/, (D) Anti CCP antibody
Answer is D. to establish diagnosis of rheumatoid ahritis are * Clinical criteria * ESR and CRP * Ultrasound or MRI * Rheumatoid factor and anti-citrullinated peptide antibodies DAVIDSON&;S 22nd EDITION;PAGE NO 1100