Lung function tests 1

Question 1

What does peak flow meter measure?

Answer 1

Peak expiratory flow rate

Normal = 500-600L/min

Question 2

How to use peak flow meter?

Answer 2

Rapid exhaled puff from full inspiration

Question 3

What is a nebuliser?

Answer 3

Mask that allows liquid drugs to be inhaled

Question 4

What type of agonist is salbutamol?

Answer 4

beta2

Question 5

What does the brown inhaler do and what does it contain?

Answer 5

The ‘reliever; and contains the corticosteroid beclamethasone (an immunosuppressant)

Question 6

How to use vitalograph

Answer 6

Sustained forced expiration from full inspiration

Question 7

What does vitalograph measure?

Answer 7

Volume exhaled in total (forced vital capacity) and in first second (FEV1)

Question 8

Can vitalograph measure residual volume?

Answer 8

no

Question 9

What is resistance?

Answer 9

Ease with which gas flows through airways

Question 10

What is compliance?

Answer 10

Expandability of lungs and chest wall

Question 11

What will the graph for asthma look like?

Answer 11

Obstructed airway reaches same point but takes longer

Question 12

FVC for asthma

Answer 12

Same

Question 13

What type of disease is asthma?

Answer 13

Obstructive

Question 14

Obstructive disease =

Answer 14

Increased resistance

Question 15

Restrictive disease =

Answer 15

Decreased compliance

Question 16

What kind of disease is pulmonary fibrosis?

Answer 16

Restrictive

Question 17

What will the graph for pulmonary fibrosis look like?

Answer 17

Reduced - lung can’t expand normally

Question 18

FVC, FEV1 and FEV1/FVC for pulmonary fibrosis

Answer 18

FVC decreases, FEV1 decreases, FEV1/FVC is the same