Lung volumes Flashcards
1
Q
Inspiratory reserve volume (IRV)
A
Air that can still be breathed in after normal inspiration
2
Q
Tidal volume (TV)
A
Air that moves into lung with each quiet inspiration,
typically 500
3
Q
Expiratory reserve volume (ERV)
A
Air that can still be breathed out after normal expiration
4
Q
Residual volume (RV)
A
Air in lung after maximal expiration;
cannot be measured on spirometry
5
Q
Inspiratory capacity (IC)
A
IRV + TV
6
Q
Functional residual capacity (FRC)
A
RV + ERV (volume in lungs after normal expiration)
7
Q
Vital capacity (VC)
A
TV + IVR + ERV
Maximal volume of gas that can be expired after a maximal inspiration
8
Q
Total lung capacity (TLC)
A
TLC = IRV + TV + ERV + RV
Volume of gas present in lungs after a maximal inspiration
9
Q
Capacity means
A
a sum of >2 volumes.
10
Q
Lung volume mneumonics
A
LITER:
Lung Inspiratory reserve volume Tidal volume Expiratory reserve volume Reserve volume
