A nurse administered ondansetron (Zofran) IV to a client one hour ago.Which of the following findings should the nurse recognize as a complication of this medication?

Choice A rationaleBradycardia is not a common complication of ondansetron (Zofran). Instead, one should watch for changes in heart rhythm such as QT interval prolongation.Choice B rationaleAbsence of nausea indicates the desired effect of ondansetron, not a complication.Choice C rationaleOndansetron is associated with prolongation of the QT interval, not shortening. QT interval shortening is not a recognized complication.Choice D rationaleProlonged QT interval is a known complication of ondansetron and can increase the risk of life-threatening arrhythmias. .