What is one symptom of K overdose?

73 Year Old Jose Velasquez has started taking a loop diuretic to reduce his elevated blood pressure.

The physician determines that Jose needs a potassium supplement but emphasizes that Jose should take the correct dose of K to avoid a pottassium overdose. What is one symptom of K overdose?

A. Hypokalemia
​B. Shortness of Breath
C. Urinary retention
D. Contispation