A 72-year-old woman with known HFrEF (LVEF 30%) presents to…
A 72-year-old woman with known HFrEF (LVEF 30%) presents to the emergency department with worsening dyspnea over 3 days. Examination reveals bibasilar crackles, jugular venous distension to 12 cm, and 2+ pitting edema to the knees bilaterally. Blood pressure is 142/88 mm Hg and oxygen saturation is 91% on room air. What is the primary therapeutic role of loop diuretics in this clinical setting?