Lung Volumes and capacities Flashcards
What is the average value of:
Tidal Volume
500ml
What is the average value of:
Inspiratory Reserve Volume
3000ml
What is the average value of:
Inspiratory capacity
3500ml
What is the average value of:
Expiratory reserve volume
1000ml
What is the average value of:
Residual volume
1200ml
What is the average value of:
Functional Residual Capacity
2200ml
What is the average value of:
Vital Capacity
4500ml
What is the average value of:
Total lung capacity
5700ml
What does TV + IRV give?
IC (Inspiratory capacity)
What does ERV + RV give?
FRC (Functional Residual Capacity)
What does VC +RV give?
TLC (Total lung capacity)
What does IRV + TV + ERV give?
Vital capacity
What is the tidal volume?
Description
Volume of air entering or leaving lungs during a singe breath
What is the inspiratory reserve volume?
Description
Extra volume of air that can be maximally inspired over and above the typical resting tidal volume
What is the inspiratory capacity?
Description
Maximum volume of air that can be inspired at the end of a normal quiet expiration
Tidal volume plus inspiratory reserve volume
What is the expiratory reserve volume?
Description
Extra volume of air that can be actively expired by maximal contraction beyond normal volume of air after a resting tidal volume
What is the residual volume?
Description
Minimum volume of air remaining in the lungs even after a maximal expiration
What is the functional residual capacity?
Description
The volume of air in the lungs at the end of normal passive expiration (not maximum)
Residual volume plus expiratory reserve volume
What is the vital capacity?
Description
The maximum volume of air that can be moved out of lungs during a single breath following maximal inspiration.
Tidal volume plus Inspiratory reserve volume plus expiratory reserve volume
What is the total lung capacity?
Description
The maximum volume of air that the lungs can hold
Vital capacity plus residual volume
(TV + IRV + ERV + RV)
What is the vital capacity plus the residual volume?
The total lung capacity
What is the total lung capacity minus the residual volume?
The vital capacity
What is FEV1?
description
Volume of air that can be expired during the first second of expiration in forced vital capacity determination.
What is FVC?
Forced Vital Capacity
Maximum volume that can be forcibly expelled from the lungs following a maximal inspiration
