Hyperkalemia

Definition

Hyperkalemia is a condition characterized by an abnormally high concentration of potassium ions (K+) in the blood. It can disrupt normal heart rhythms and neuromuscular function.

Related terms

Potassium:

An essential mineral that plays key roles in cell function, nerve transmission, and muscle contraction.

Electrolyte: Substances that become ions in solution and acquire the capacity to conduct electricity; potassium is one such electrolyte.

ECG changes: Alterations in the electrical activity of the heart as recorded by an electrocardiogram, often seen with hyperkalemia due to its effect on cardiac muscle function