Pulmonary Function Tests

Question 1

What are the 3 types of pulmonary function tests?

Answer 1

effort dependent, effort independent and gas diffusion tests

Question 2

What is the FER?

Answer 2

forced expiratory ratio

FEV1/FVC

Question 3

What happens to FEV1, FEV and FER in asthma?

Answer 3

FEV1 decreases, FEV is normal and ratio is <75%

Question 4

What happens to FEV1, FEV and FER in COPD?

Answer 4

FEV1 and FEV decrease, ratio is <75%

Question 5

What happens to FEV1, FEV and FER in restrictive lung disease?

Answer 5

FEV1 and FEV decrease, ratio is >75%

Question 6

What is a non invasive marker of

eosinophilic airway inflammation in asthma and what is it not useful in?

Answer 6

Exhaled breath nitric oxide

COPD

Question 7

What is type 1 respiratory failure?

Answer 7

Type 1 respiratory failure is defined as hypoxemia without hypercapnia, and indeed the PaCO2 may be normal or low.

Question 8

What is type 2 respiratory failure?

Answer 8

Hypoxemia (PaO2 6.0kPa)