What is a significant characteristic of bronchitis related to cystic fibrosis?

• A. Loss of appetite
• B. Increased mucus production
• C. Sleep disturbances
• D. Rapid heartbeat

Answer: (B)

In patients with cystic fibrosis, a significant characteristic of bronchitis is the increased mucus production. This condition results from the defective CFTR gene, which disrupts the transport of chloride ions, leading to thicker and stickier mucus throughout the body, particularly in the lungs. This excessive mucus creates an environment that fosters bacterial growth, leading to chronic lung infections and inflammation, which manifest as bronchitis. This is critical in cystic fibrosis management, as the increased mucus can obstruct airways and worsen pulmonary function, making it essential for healthcare professionals to address mucus clearance as part of the treatment strategy.