110 MCQs in Pathology Answer

The Correct option is A


Cor pulmonale

This disorder is defined as a disturbance of structure and function of the right ventricle as a result of precapillary pulmonary hypertension in chronic lung disease.

The most common cause is chronic obstructive lung disease (COLD ).

Right ventricular failure may resulting in prominent edema in the lower extremities and perhaps ascites.

More often we find normal ejection fraction of the RV at rest and even during exercise and normal glomerular filtration fraction. In these patients edema is a result of hypercapnea, which leads to increased reabsoption of bicarbonates followed by pasive reabsorption of sodium chloride and water in the kidney.

Also chronic hypoxemia and consequent vasoconstriction in renal vascular bed and reduction of sodium excretion play a role.

Category: Pathology MCQs