26. A 25-year-old male with a history of recurrent infections, particularly pneumonia, presents with chronic productive cough, bronchiectasis on CT scan, and steatorrhea. What is the technical primary pathophysiological defect in cystic fibrosis?
A.
Abnormal chloride channel function, leading to thick, viscous secretions.
✓
B.
Impaired ciliary movement.
C.
Alveolar destruction.
D.
Bronchial hypersensitivity.
📖 Additional Information
Abnormal chloride channel function, leading to thick, viscous secretions.