pulmonary function testing

Question 1

what are the 3 basic types of pulmonary function tests

Answer 1

• effort dependent tests
• effort independent tests
• gas diffusion tests

Question 2

regarding spirometry In asthma, forced vital capacity (FVC) is usually

Answer 2

preserved

Question 3

less than 0.75 for FEV1 ratio =

Answer 3

airway obstruction

Question 4

patients with asthma usually have a

Answer 4

preserved forced vital capacity

Question 5

In COPD, forced vital capacity (FVC) is usually

Answer 5

impared

Question 6

In pateints w restrctive lung disease, ratio of FVC:FEV1 is

Answer 6

NOT impaired - reduced in direct proportion

Question 7

what is DLCO always in asthma

Answer 7

preserved

Question 8

what is DLCO in COPD

Answer 8

NOT PRESERVED

Question 9

Peak Expiratory Flow Rate (PEFR)

Answer 9

Measure of the fastest flow of exhaled air after a maximal inspiration (peak of graph)

Question 10

Forced Expiratory Flow Rate

Answer 10

• Average flow rate over the middle half of the expiration (25-75% of FVC)

Question 11

exercise testing

Answer 11

• Decreased FEV1 or PEF post exercise → asthma

Question 12

what does bronchial challenge testing assess

Answer 12

airway hyper-responsiveness

Question 13

N2 washout static lung volumes

Answer 13

Method for calculating anatomical dead space - tests functional residual capacity

Question 14

Relaxed vital capacity

Answer 14

spirometry

Question 15

what is FeNO a marker of

Answer 15

T2 airway inflammation (IL13) in asthma