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Flashcards in Pulmonary Function Tests Deck (23):
1

What type of pulmonary function tests are spirometry, peak flow etc?

Effort dependent

2

What type of curve is spirometry plotted on?

Volume time curve

3

From spirometry, what major difference can be seen between COPD and asthma/normal?

Has a much lower FVC

4

Does asthma have a lower than normal FVC?

No

5

Does asthma have a lower than normal FEV1?

Yes

6

Does COPD have a lower than normal FEV1?

Yes

7

In a question, FVC is reduced, what will it be? What is the only exception to this?

COPD. Exception is airway remodelling in asthma

8

What will the peak flow be in obstructive?

Decreased

9

What will the peak flow be in restrictive?

Normal

10

What will the FEV1 be in obstructive?

Low

11

What will the FEV1 be in restrictive?

Low

12

What will the FVC be in obstructive?

Low in COPD, normal in asthma

13

What will the FVC be in restrictive?

Low

14

What will the FEV1/FVC ratio be in obstructive?

Decreased (<75%)

15

What will the FEV1/FVC ratio be in restrictive?

Normal (>75%)

16

What will the FEV1 response to beta agonist be in obstructive?

> 15% in asthma
< 15% in COPD

17

What will the FEV1 response to beta agonist be in restrictive?

No response

18

What will cause a decreased peak flow and FEV1 following exercise?

Asthma

19

What will cause a decreased SaO2 during exercise?

Restrictive disease

20

What is a useful test for people who can't perform a forced expiratory test?

Airway resistance

21

What does exhaled breath condensate measure?

Exhaled breath nitric oxide

22

What is exhaled breath nitric oxide a marker of?

Eosinophilic airway inflammation

23

Why is exhaled breath condensate not used for COPD?

Nitric oxide is suppressed by smoking