Why are CKD patients at risk for pericarditis?

• A. Hypercalcemia triggers pericardial inflammation.
• B. Pericarditis is not associated with CKD.
• C. Uremic toxins cause inflammation of the pericardium.
• D. Bacterial infection is always the cause.

Answer: (C)

The main idea is that in CKD the buildup of waste products, or uremic toxins, irritates the pericardium and causes inflammation—this is uremic pericarditis. When kidneys fail or dialysis doesn’t remove toxins quickly enough, these solutes accumulate in the blood and reach the pericardium, triggering an inflammatory response that can produce chest pain, a pericardial friction rub, and sometimes a pericardial effusion. Treating the underlying problem means optimizing dialysis to clear the toxins, which often resolves the pericarditis.

Hypercalcemia isn’t the typical trigger for pericarditis in CKD; the common CKD-associated issue is toxin buildup and inflammation rather than calcium-driven inflammation. Pericarditis is related to CKD, though bacterial pericarditis can occur, it is not the always-present cause—ur­emic inflammation is the classic mechanism in this context.