Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Hyperkalemia
Medically reviewed by Min Clinic Staff | Updated: January 2026
Hyperkalemia: Elevated potassium in the blood. Hyperkalemia can be caused by taking excessive amounts of potassium, by medications, tissue trauma, and by diseases such as kidney failure. Hyperkalemia may not produce any symptoms, but severe hyperkalemia can lead to potentially fatal arrythmias of the heart.