A nurse is caring for a client who has pulmonary edema and a new prescription for furosemide 40 mg IV twice daily. Which of the following client findings indicates the prescription is appropriate?

A. Bilateral coarse crackles are a key sign of pulmonary edema, indicating fluid overload in the lungs. Furosemide is a loop diuretic used to remove excess fluid, making this finding an appropriate indication for the prescription. B. Vesicular breath sounds are normal lung sounds heard over the peripheral lung fields and do not suggest fluid overload or the need for diuretic therapy. C. A blood pressure of 100/70 mm Hg is within a safe range, but on its own does not justify the use of furosemide. However, it is important to monitor blood pressure closely during diuretic therapy to avoid hypotension. D. A potassium level of 3.2 mEq/L is below normal, and since furosemide can cause further potassium loss, this would typically require correction or supplementation before or during diuretic therapy—not an indication that the drug is appropriate as-is.