The most common cause of pulmonary abscesses in Cystic Fibrosis is?: (A) Pseudomonas aeruginosa, (B) Staphylococcus aureus, (C) Burkholderia cenocepacia, (D) Nontuberculous mycobacteria
Answer is A. Pseudomonas aeruginosa REF: Mayo Clinic Internal Medicine Board Review 9th edition Page 845, Infectious diseases of the respiratory tract by Michael E. Ellis Page 511 "Pseudomonas aeruginosa is a ubiquitous organism commonly isolated from patients with cystic fibrosis and bronchiectasis"