Difficulty: Medium
Average Score: 95%
Full-length
A client in the ICU is given procainamide HCl (Pronestyl) slowly IV push. The nurse should withhold the next dose of this medication and notify the physician if which of the following is observed on the cardiac monitor?
Correct answer
D
Rationale
prolongation of the QT interval is a side effect that can lead to torsades de pointes, a life-threatening arrhythmia