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?

Bilateral coarse crackles are hallmark signs of pulmonary edema, caused by fluid leaking into alveoli from increased left heart pressure. Furosemide, a loop diuretic, reduces this fluid by enhancing renal excretion, relieving lung congestion. This finding directly correlates with the drug's purpose├óÔé¼ÔÇØremoving excess fluid to improve oxygenation and reduce respiratory distress. A. Blood pressure of 100/70 mm Hg may suggest fluid overload but is not specific. B. Vesicular sounds indicate healthy lungs, not requiring diuretics. D. Low potassium is a side effect, not an indication.