Lung Function Tests

Question 1

What are normal FEV1 and FVC ratios

Answer 1

Both FEV1 and FVC are normal and the FEV1 FVC ratio (FEV1/FVC) is >70%

Question 2

What does it mean if FEV1 and FVC are both reduced but the ratio is >70%

Answer 2

Restrictive condition

Question 3

What does it mean if FEV1 and FVC are both reduced but the ratio is

Answer 3

Obstructive condition

Question 4

What effect does a bronchodilator have on FEV1 valves of a person with asthma

Answer 4

Percentage improvement of >15% and at least 400ml increase

Question 5

What effect does a bronchodilator have on FEV1 valves of a person with COPD

Answer 5

Percentage improvement of

Question 6

What effect does a bronchodilator have on peak flow valves of a person with asthma

Answer 6

Increase of 25%