Which finding would indicate a dangerous complication in a client with hypokalemia?

Which finding would indicate a dangerous complication in a client with hypokalemia?

• A. Bradycardia with regular rhythm
• B. Ventricular arrhythmias on ECG
• C. Increased appetite
• D. Mild headache

Answer: (B)

Low potassium destabilizes the heart’s electrical system, making it more prone to dangerous rhythms. When potassium is too low, myocardial cells become irritable and repolarization is altered, which increases the likelihood of ventricular tachyarrhythmias. Seeing ventricular arrhythmias on an ECG indicates a life-threatening complication that requires immediate attention and correction of potassium. Other findings like bradycardia with a regular rhythm can occur in various situations and aren’t the classic dangerous consequence of hypokalemia. Increased appetite and mild headache aren’t typical indicators of the dangerous cardiac risk associated with low potassium. The key danger in hypokalemia is the development of ventricular rhythm disturbances that can compromise cardiac output if not promptly addressed.

Low potassium destabilizes the heart’s electrical system, making it more prone to dangerous rhythms. When potassium is too low, myocardial cells become irritable and repolarization is altered, which increases the likelihood of ventricular tachyarrhythmias. Seeing ventricular arrhythmias on an ECG indicates a life-threatening complication that requires immediate attention and correction of potassium.

Other findings like bradycardia with a regular rhythm can occur in various situations and aren’t the classic dangerous consequence of hypokalemia. Increased appetite and mild headache aren’t typical indicators of the dangerous cardiac risk associated with low potassium. The key danger in hypokalemia is the development of ventricular rhythm disturbances that can compromise cardiac output if not promptly addressed.