When giving potassium chloride for you keep patient on a cardiac monitor?

Correct Answer: Continuous if >20 mEq or infused rapidly

Rationale: Potassium is a very dangerous medication due to the narrow therapeutic index. Cardiac arrhythmias are the most severe problem. Patients should either have a continuous cardiac monitor or be on monitored intermittent telemetry when potassium chloride is being given. Also do not infuse faster than 20mEq/hr (unless a code situation) due to the risk of inducing life-threatening arrhythmias.