Investigations

Question 1

Which disease will show a low FVC, a low FEV1, and a low FEF1/FVC% on spirometry?

Answer 1

Combined restrictive-obstructive lung disease

Question 2

What are the spirometry patterns in obstructive lung diseases?

Answer 2

Reduced PEFR, reduced FEV1, Normal FVC in asthma (reduced in COPD), FEV1/FVC% < 75%,

Question 3

What are the spirometry patterns in restrictive lung diseases?

Answer 3

Normal PEFR, reduced FEV1, Reduced FVC, FEV1/FVC% >75%