Pulmonary Function Tests

Question 1

Types of effort dependant tests

Answer 1

Forced expiratory volumes

Flow rates - spirometry

Question 2

What is the normal forced expiratory ratio?

Answer 2

75-80%

Question 3

Volume dependant expiratory airway closure

Answer 3

Asthma

Chronic bronchitis

Question 4

Pressure dependant expiratory airway closure

Answer 4

Emphysema

Question 5

Peak expiratory flow rate

Answer 5

Maximal forced expiration through a peak flow metre

Question 6

Spirometry in obstructive disease

Answer 6

Reduced

Question 7

Spirometry in restrictive disease

Answer 7

Normal

Question 8

Forced expiratory volumes in asthma

Answer 8

FEV1 = Reduced
FVC = Normal
Ratio = <75%

Question 9

Forced expiratory volumes in COPD

Answer 9

FEV1 = Reduced
FVC = Reduced
Ratio = <75%

Question 10

Forced expiratory volumes in restrictive disease

Answer 10

FEV1 = Reduced
FVC = Reduced
Ratio = Normal

Question 11

What does reduced SaO2 during exercise suggest?

Answer 11

Interstitial lung disease

Question 12

Increased total lung capacity

Answer 12

Emphysema

Question 13

Decreased total lung capacity

Answer 13

Restrictive lung disease

Question 14

Type I respiratory failure

Answer 14

low PaO2, low PaCO2

Question 15

Type II respiratory failure

Answer 15

low PaO2, high PaCO2