A nurse is preparing to administer vancomycin to a client who has an infected wound. The nurse should plan to monitor for which of the following adverse reactions?

A. Taking the client to the bathroom after a preoperative injection may be unsafe because many preoperative medications can cause sedation or dizziness, increasing the risk of falls.
B. Verification of the surgical site should occur before administration of preoperative medications, as the client may be sedated and unable to participate accurately afterward.
C. Teaching deep breathing and coughing exercises is most effective before sedation, when the client is alert and able to learn and follow instructions.
D. Raising the side rails on the bed is a priority safety measure after administering preoperative sedatives, as it helps prevent falls and injury while the client is drowsy or unsteady.

A. Administering furosemide may also be appropriate for managing heart failure symptoms, but the priority action based on the client's condition is to withhold digoxin.

B. The client's vital signs indicate bradycardia (pulse 52/min), which is a common adverse effect of digoxin, especially in the setting of heart failure. Withholding digoxin is necessary to prevent further exacerbation of bradycardia and potential toxicity.

C. Withholding spironolactone may be considered if there are concerns about electrolyte imbalances, but it is not the priority action in this scenario.

D. Administering ferrous sulfate is not indicated based on the client's chart findings; there is no indication of anemia or iron deficiency.