Heparin is a common cause of acquired hyperkalemia through reversible inhibition of aldosterone synthesis. While often mild, the condition can become dangerous in patients with renal impairment, diabetes, or concurrent use of potassium-modifying drugs. Early recognition, routine electrolyte monitoring, and prompt adjustment of therapy are essential to prevent complications. Clinicians should maintain a high index of suspicion for heparin-induced hyperkalemia whenever serum potassium rises unexpectedly during anticoagulation, and consider alternative anticoagulants in high-risk individuals. By understanding this electrolyte disturbance, healthcare providers can safely harness heparin’s lifesaving benefits while minimizing its metabolic risks.
The condition is notoriously insidious. Most patients are asymptomatic until potassium levels become critically high. The timeline is important: heparin cause hyperkalemia
Administering insulin and glucose can help drive potassium back into cells. Heparin is a common cause of acquired hyperkalemia