Which adverse reaction is most commonly associated with potassium IV administration?

The most commonly associated adverse reaction with potassium IV administration is hyperkalemia. Hyperkalemia refers to an elevated level of potassium in the blood, which can occur when potassium is given intravenously, particularly if administered too rapidly or in excessive amounts. This condition can lead to serious complications, including cardiac arrhythmias and other cardiovascular problems, as potassium plays a crucial role in regulating heart function.

Monitoring potassium levels during and after IV administration is essential to prevent hyperkalemia and ensure patient safety. It is important to always follow guidelines and protocols concerning potassium IV therapy to avoid the risk of this common adverse effect.