A nurse is caring for an older adult client who has heart failure and a prescription for a repeat dose of furosemide 40 mg orally.Which of the following actions is the nurse's priority?

Choice A rationale:While reminding the client to change positions slowly is important to prevent orthostatic hypotension, it is not the priority before administering furosemide.Choice B rationale:Preparing the client’s medication is an important step, but it should be done after reviewing the client’s electrolyte levels.Choice C rationale:Recording the client’s urinary output is important when administering furosemide, a diuretic, but it is not the priority action.Choice D rationale:Reviewing the client’s electrolyte levels is crucial before administering furosemide because it can cause electrolyte imbalances, including low potassium levels, which can lead to serious cardiac complications.