respiratory volumes

Question 1

lung volume

Answer 1

can be measured directly with a spirometer

Question 2

lung capacity

Answer 2

calculated value, cannot be directly measured with a spirometer

Question 3

tidal volume

Answer 3

air volume exchanged during each breath

Question 4

inspiratory reserve volume (IRV)

Answer 4

maximum air volume forcibly inspired after tidal inspiration

Question 5

expiratory reserve volume (ERV)

Answer 5

maximum air volume forcibly expired after tidal expiration

Question 6

residual volume

Answer 6

air volume left in longs after forced expiration

Question 7

inspiratory capacity (IC)

Answer 7

total volume of air in the lungs that can be inspired

IRV +TV

Question 8

vital capacity (VC)

Answer 8

total volume of air in the lungs that is exchangeable

Question 9

functional residual capacity (FRC)

Answer 9

total air volume left in lungs after tidal expiration

Question 10

total lung capacity

Answer 10

total volume of air in the lungs, both exchangeable and nonexchangeable