Lung Capacities Flashcards
1
Q
What is Functional Residual Capacity(FRC)
A
volume of air remaining in the lungs after normal passive exhalation.
ERV + RV
2
Q
Normal FRC
A
About 2.5-3L
3
Q
What is Inspiratory Capacity(IC)
A
Volume of air that can maximally be inhales into lungs after normally Vt expiration.
Vt + IRV
3
Q
Normal IC
A
About 3.5L
3
Q
What is Vital Capacity(VC)
A
change in volume of lung after maximal inspiration followed by maximal expiration.
(IRV + Vt + ERV) - RV
3
Q
What is Expiratory Capacity(EC)?
A
total volume of air a person can expire after a normal inspiration.
Vt + ERV
4
Q
Normal VC
A
3-5L or 50 ml/Kg
4
Q
What is Total Lung Capacity(TLC)
A
total volume of air in the lungs at full inhalation.
IRV + Vt + ERV + RV or IC + FRC
5
Q
Normal TLC
A
Male = ~ 6L
Female = ~ 4.5L
6
Q
Normal EC
A
About 2L
