|Pass rate:||75 %|
A 60 year old male, smoker for 20 years, was admitted because of progressive cough of six months duration, productive of whitish phlem.
Patient developed dyspnea three months ago with bibasilar, inspiratory crackles on physical examination. Chest xray revealed diffuse parenchymal infiltrates.
Patient was previously healthy and denies chest pain, weight loss, fever and