Which safety practice is essential when administering potassium chloride to minimize risk?

• A. Use an IV piggyback with a diluted solution, no IV push, and a dedicated line
• B. Administer via IV push
• C. Use a shared line with another infusion when possible
• D. Use a rapid IV bolus if patient is unstable

Answer: (A)

Potassium chloride is a high-alert medication that can cause life-threatening cardiac issues if given too rapidly or undiluted. The safest practice is to infuse it as a diluted solution through an IV piggyback into a dedicated line, and to avoid IV push. This arrangement provides precise control over the rate and amount administered, reducing the risk of a rapid spike in potassium and preventing administration through a line that could also carry other drugs or infusions. A dedicated line also minimizes the chance of incompatibilities or interruptions that could lead to dosing errors.

Giving potassium chloride via IV push, or using a shared line, or administering a rapid IV bolus all raise the risk of delivering a too-fast or inappropriate dose. IV push can deliver a concentrated amount quickly; shared lines increase the chance of incompatibilities and misadministration; and rapid bolus administration can precipitate dangerous hyperkalemia and arrhythmias. Therefore, the diluted IV piggyback with a dedicated line and no IV push is the safest, most controlled method.