A patient with long-standing rheumatoid arthritis presents for care. Which systemic complication is this patient at greatest increased risk for?

Correct answer: D. Myocardial infarction

• A. Interstitial lung disease and rheumatoid nodules are the RA-associated pulmonary findings; COPD is a smoking-related obstructive disease and is not the classic RA complication.
• B. Hyperparathyroidism is unrelated to RA. RA patients do develop osteoporosis, but through inflammatory cytokine-driven bone loss and corticosteroid therapy, not parathyroid overactivity.
• C. Ischemic stroke risk is modestly raised in RA through the same atherosclerotic mechanism, but HEMORRHAGIC stroke is not the characteristic association. The classic board answer is myocardial infarction.
• D. CORRECT. Rheumatoid arthritis is a chronic SYSTEMIC inflammatory disease, and the persistently elevated inflammatory burden (CRP, IL-6, TNF-alpha) accelerates atherosclerosis. Cardiovascular disease — particularly MYOCARDIAL INFARCTION — is the leading cause of death in RA patients, with roughly a 50-60% excess risk compared with the general population. The risk is comparable to that conferred by type 2 diabetes and is only partly explained by traditional risk factors.

Note: Dental relevance: RA patients often have TMJ involvement, limited opening, cervical spine (atlantoaxial) instability that affects chair positioning, and are frequently on methotrexate, corticosteroids, or biologics — all of which affect healing and infection risk.