This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pediatrics
Most common organism associated with cystic fibrosis 
Select and explain. 
A. Pseudomonas aeruginosa (non mucoid), B. Burkholderia cepacia, C. Pleisomonas, D. Aeromonas
A: Pseudomonas aeruginosa (non mucoid)
Answer: A: Pseudomonas aeruginosa (non mucoid) 
Explanation: Pseudomonas may colonise s of patients with cystic fibrosis and causes recurrent pulmonary exacerbations. Ref : Essential pediatrics,O.P.Ghai,7 th edition,pg no:355