Question

which of the following conditions may cause an infarct in the lungs?
a pulmonary fibrosis
b pulmonary emboli
c pulmonary edema
d pneumonia

Explanation:

A pulmonary infarct occurs due to lack of blood supply to a part of the lung. Pulmonary emboli block the pulmonary arteries, cutting off blood flow and causing an infarct. Pulmonary fibrosis is scar - ring of lung tissue, pulmonary edema is fluid accumulation in the lungs, and pneumonia is an infection of the lungs, none of which directly cause infarcts like emboli.

Answer:

B. pulmonary emboli