What is the role of BAL in the workup of cystic fibrosis (CF)?

Updated: Oct 30, 2018
  • Author: Girish D Sharma, MD, FCCP, FAAP; Chief Editor: Kenan Haver, MD  more...
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Answer

Airway inflammation is the hallmark of lung disease in patients with CF. Studies suggest that airway inflammation is present even in the absence of infection.

Bronchoalveolar lavage fluid usually shows a high percentage of neutrophils, and recovery of Pseudomonas aeruginosa from bronchoalveolar lavage fluid supports the diagnosis of CF in a clinically atypical case.


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