[Verified Answer]: A construction worker who renovates old…

A construction worker who renovates old buildings is seen by his physician. His concerns are fatigue, shortness of breath, a persistent cough, and moderate chest pain. He has had some weight loss also. His physician ordered a battery of tests and a bronchoalveolar lavage. The laboratory findings were reported as follows: color gray, clarity slight hazy. The differential reported an increase in neutrophils and columnar bronchial