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Flashcards in 5. Lung volumes Deck (25):
1

IRV
TV
ERV
RV
meaning

Inspiratory reserve volume
tidal volume
expiratory reserve volume
residual volume

2

IC
FRC
VC
TLC

inspiratory capacity
functional residual capacity
Vital capacity
total lung capacity

3

tidal volume (TV)

air that moves into lungs with each quiet inspiration, typically 500 ml

4

inspiratory reserve volume (IRV)

air that can still be breathed in after normal inspiration 3.3 L

5

Expiratory reserve volume

air that can be breathed out after normal expiration (1L)

6

Residual volume (RV)

air in lung after maximal expiration. Cannot be measured in spirometry 1.2L

7

Inspiratory capacy

Inspiratory reserve volume IRV + tidal volume (TV)
3.8L

8

Funstional residual capacity

Volume of gas in lungs after normal expiration (2.2L)
Residual volume (RV) + Expiratory rerve volume (ERV)

9

Vital capacity (VC)

Maximum volume of gas that can be expired after a maximal inspiration (4.8L)
IRV+TV+ERV

10

Total lung capacity

volume of gas present in the lung after maxima inspiration (6L)

IRV+RV+ERV+RV

11

inspiratory reserve volume (IRV) + tidal volume (TV)

inspiratory capacity (IC) (3.8L)

12

inspiratory reserve volume (IRV) + tidal volume (TV) +expiratory reserve volume (ERV)

vital vapacity (VC) 4.8L

13

IRV+TV+ERV+RV

TLC 6L

14

RV + ERV

FRC 2.2L

15

What is the term for the volume of air in excess of tidal volume that moves into the lung on inspiration?

Inspiratory reserve volume

16

A man breathes calmly and quietly. He takes in a normal breath and then lets it out without any forcing. What volume of air is being moved?

Tidal volume, which is approximately 500 mL

17

What is the term for the volume of air that can still be breathed out after a normal expiration?

Expiratory reserve volume

18

What is the term for the volume of air in the lungs after maximal expiration?

Residual volume

19

The inspiratory reserve volume plus the tidal volume equals what?

Inspiratory capacity

20

The residual volume plus the expiratory reserve volume equals what?

The functional reserve capacity

21

Vital capacity equals the sum of what three lung volumes?

Tidal volume, inspiratory reserve volume, and expiratory reserve volume

22

A patient exhales as much as he can, inhales as much as he can, and then exhales as much as he can again. What volume of air has he moved?

His vital capacity (VC)

23

Inspiratory reserve volume plus tidal volume plus expiratory reserve volume plus residual volume equals what?

Total lung capacity

24

Name the four lung volumes.

Lung volumes (LITER) = Inspiratory reserve (IRV), Tidal (TV), Expiratory reserve (ERV), Residual (RV)

25

What is the definition of a capacity?

The sum of greater than or equal to two physiologic volumes