1. How often does having chronic bronchitis result in needing supplemental oxygen?
2. How often does emphysema occur in someone who has chronic bronchitis (and doesnt smoke or quit smoking before emphysema started).
3. Why do people with chronic bronchitis need suppoxygen when their alveolis are not damaged like that in a person with emphysema. of course i realize the walls of the bronchi become narrowed thus making it harder to breathe. So that’s my answer, possibly.