A nurse is caring for a client who has a prescription for vancomycin 1 g IV intermittent infusion over 30 min every 12 hr. Which of the following actions should the nurse take?

Choice A rationaleTrough levels should be drawn just before the next dose, not 60 minutes after infusion, to ensure accurate assessment of the lowest concentration of vancomycin in the patient's bloodstream.Choice B rationaleThere is no need to change the infusion site after each dose unless there are signs of phlebitis or infiltration. Consistent monitoring of the site for adverse reactions is sufficient.Choice C rationaleContacting the provider for prescription clarification is necessary if the infusion duration seems too rapid. Vancomycin should be infused over at least 60 minutes to reduce the risk of red man syndrome.Choice D rationalePeak levels should be drawn 1-2 hours after infusion completion, not before. Monitoring peak levels helps in assessing the maximum concentration of vancomycin in the patient's system.