TY - JOUR T1 - False positive elevation of cardiac troponin I in seropositive rheumatoid arthritis. JF - The Journal of Rheumatology JO - J Rheumatol SP - 2750 LP - 2751 VL - 28 IS - 12 AU - G Katwa AU - G Komatireddy AU - S E Walker Y1 - 2001/12/01 UR - http://www.jrheum.org/content/28/12/2750.abstract N2 - Cardiac troponin I is a sensitive and specific biochemical marker for the diagnosis of acute myocardial injury. We describe a patient with seropositive rheumatoid arthritis (RA) in whom troponin I, measured with a microparticle enzyme immunoassay, was elevated falsely in the absence of acute myocardial infarction. Apparent elevation of troponin I concentration should be evaluated with care in patients with seropositive RA. ER -