All the following statements about Emphysema are true except
The hallmark of Emphysema is air flow obstruction and pulmonary function test show an obstructive patters Ref Harrison 19th edition pg 306e-4
Breathlessness is the characteristic presenting symptom
Diffusion rate of carbon monoxide is reduced
Restrictive pattern on pulmonary function test is seen
Long term bronchodilator therapy does not improve lung function
Respiratory system