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1 pts D Question 57 A 70-year-old male with a history of aortic stenosis undergoes valve replacement surgery. In the postoperative period, he develops respiratory distress, On examination, he has crackles in both lungs and is tachypneic. A chest X-ray (CXR) reveals pulmonary edema. What is the pathophysiology of the pulmonary edema in this particular patient? O Aortic stenosis restricts blood flow and causes backflow which increases pressures in the left ventricle and left atrium, eventually leading to increased hydrostatic pressure in the pulmonary capillaries. O Aortic stenosis leads to direct backflow of blood into the left atrium, causing increased oncotic pressure in the pulmonary veins and capillaries, resulting in pulmonary edema Right diastolic dysfunction reduces the heart's ability to pump blood effectively, leading to increased end-diastolic pressure and volume, which raises oncotic pressure in the pulmonary capillaries. O Right ventricular failure causes increased pressure in the right atrium and systemic venous system, leading to fluid accumulation in the lungs due to increased pressure in the pulmonary capillaries Previous Next Submit Quiz