Hypokalemia.

Hypokalemia is an electrolyte imbalance that can have serious effects on the patient if not detected early. Therefore, it is important for the nurse to: (1) be aware of those patients at risk for excess potassium loss, (2) monitor those patients' ECG to observe for any changes indicative of hypokalemia, and (3) assess for physical signs and symptoms indicative of hypokalemia. Early detection of hypokalemia and early intervention will prevent potential catastrophic events.