Lung function tests and common lung conditions

Question 1

obstructive lung disease

Answer 1

obstruction of air flow especially on expiration

Question 2

restrictive lung disease

Answer 2

restriction of lung expansion, loss of lung compliance.

Question 3

spirometry

Answer 3

measurements can be static or dynamic. blow into a machine

Question 4

results you would see for patient with obstructive lung disease

Answer 4

big reduction in FEV1 and small reduction in FVC 42%

Question 5

results you would see for patient with restrictive lung disease

Answer 5

reduction in both FEV1 and FVC in proportion. normal or 90%

Question 6

static spirometry

Answer 6

only consideration made is the volume exhaled

Question 7

dynamic spirometry

Answer 7

time taken to exhale a certain volume is what is being measured

Question 8

what can spirometry measure

Answer 8

tidal volume, expiratory reserve volume, inspiratory reserve volume, vital capacity, inspiratory capacity. anything that does not include residual volume

Question 9

normal ratio of FEV1 and FVC should be roughly

Answer 9

80%

Question 10

FVC

Answer 10

forced vital capacity

Question 11

FEV1

Answer 11

forced expiratory volume in 1 second

Question 12

what shape on pressure graph for obstructive

Answer 12

leaf shape, thicker on bottom than in top

Question 13

what shape on pressure graph for restrictive

Answer 13

long thin oval

Question 14

in obstructive lung diseases what is harder expiration or inspiration

Answer 14

expiration

Question 15

in restrictive lung diseases what is harder expiration or inspiration

Answer 15

inspiration