COPD Phenotypes

Question 1

what are the two major phenotypes of COPD?

Answer 1

chronic bronchitis and emphysema

Question 2

what is chronic bronchitis?

Answer 2

it is characterized by airway inflammation and obstruction of the smaller airways

Question 3

when is chronic bronchitis diagnosed?

Answer 3

a history of chronic productive cough for at least 3 consecutive months over 2 consecutive years is required for clinical diagnosis

Question 4

what is emphysema?

Answer 4

is characterized by loss of lung elasticity and abnormal enlargement of the air spaces distal to the terminal bronchioles with destruction of the alveolar walls and capillary beds