RT Book, Section A1 Fitzpatrick, Meghan E. A1 Prendergast, Niall T. A1 Rivera-Lebron, Belinda A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1186012608 T1 Cystic Fibrosis T2 Current Medical Diagnosis & Treatment 2022 YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264269389 LK accessmedicine.mhmedical.com/content.aspx?aid=1186012608 RD 2024/04/25 AB ESSENTIALS OF DIAGNOSISPulmonary disease: chronic or recurrent productive cough, dyspnea, and wheezing; recurrent airway infections or chronic colonization of the airways with H influenzae, P aeruginosa, S aureus, or Burkholderia cenocepacia; bronchiectasis and scarring on chest radiographs; airflow obstruction on spirometry.Extrapulmonary disease: sinus disease; gastrointestinal disease (pancreatic insufficiency, recurrent pancreatitis, hepatobiliary disease, meconium ileus, and distal intestinal obstruction); genitourinary problems (male infertility and urogenital abnormalities)Sweat chloride concentration > 60 mEq/L on two occasions.Presence of two disease-causing mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene.Abnormal nasal potential difference.