Pulmonary Function Testing

Question 1

amount of air inhaled or exhaled in one breath

Answer 1

tidal volume

Question 2

normal tidal volume

Answer 2

500 ml

Question 3

amount of air in excess of tidal inspiration that can be inhaled with max effort

Answer 3

inspiratory reserve volume

Question 4

residual volume

Answer 4

amount of air left in the lungs after a max expiration

Question 5

max amount of air the lungs can contain

Answer 5

total lung capacity

Question 6

what keeps alveoli inflated between breaths

Answer 6

residual volume

Question 7

residual volume mixes with – on the next inspiration

Answer 7

fresh air

Question 8

normal expiratory reserve volume

Answer 8

1200 ml

Question 9

normal residual volume

Answer 9

1200 ml

Question 10

amount of air that can be exhaled with max effort after max inspiration

Answer 10

vital capacity

Question 11

equation for vital capacity

Answer 11

ERV + TV + IRV

Question 12

max amount of air that can be inhaled after a normal tidal expiration

Answer 12

inspiratory capacity

Question 13

equation for inspiration capacity

Answer 13

TV + IRV

Question 14

normal value for inspiratory capacity

Answer 14

3500 ml

Question 15

amount of air remaining in lungs after a normal tidal expiration

Answer 15

functional residual capacity

Question 16

equation for functional residual capacity

Answer 16

RV + ERV

Question 17

normal value for functional residual capacity

Answer 17

2400 ml

Question 18

normal value for total lung capacity

Answer 18

5900 ml

Question 19

equation for total lung capacity

Answer 19

VC + RV

Question 20

maximum voluntary ventilation

Answer 20

80-180 L/min

Question 21

forced vital capacity

Answer 21

volume that can be forcibly blown out after max inhale

Question 22

forced expiratory flow (FEF 25-75)

Answer 22

flow of air coming out of lungs during the middle of exhaling

Question 23

FEV1

Answer 23

forced expiration volume in one second after full inhale

Question 24

FEV1 / FVC

Answer 24

0.8

Question 25

measure of the max amount of air that can be inhaled and exhaled within one minute

Answer 25

MVV

Question 26

What cannot be obtained from spirometry alone?

Answer 26

RV, FRC, TLC

Question 27

spirometry values depend on the person’s

Answer 27

height, gender, age and lung anatomy

Question 28

used to assess strength of thoracic muscles and pulmonary function

Answer 28

vital capacity

Question 29

how can you measure FRC and TLC?

Answer 29

nitrogen wash out
helium dilution
body plethysmography

Question 30

asthma is a – defect

Answer 30

obstructive

Question 31

COPD (chronic bronchitis and emphysema) is a – defect

Answer 31

obstructive

Question 32

pulmonary fibrosis is a – defect

Answer 32

restrictive

Question 33

neuromuscular weakness is a – defect

Answer 33

restrictive

Question 34

chest wall deformity is a – defect

Answer 34

restrictive