<prompt> Most common organism associated with cystic fibrosisPseudomonas aeruginosa non mucoidBurkholderia cepaciaPleisomonasAeromonas  <response>: 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 