Pulmonary Volumes And Capacities Flashcards
What is pulmonary volumes and capacities measured by?
Spirometer
What does static lung volumes include?
Tidal volume
Inspiratory reserve volume
Expiratory reserve volume
Residual volume
What is tidal volume?
Volume of air inspired or expired during rest
500 ml
What is inspiratory reserve volume?
Maximal volume of air inspired after normal inspiration
3000 ml
What is expiratory reserve volume?
Maximal volume of air expired after normal expiration
1200 ml
What is residual volume?
Volume of air remaining in the lung after maximal expiration
1200 ml
What does static lung capacities include?
Inspiratory capacity
Functional residual capacity
Vital capacity
Total lung capacity
What is inspiratory capacity?
Maximal volume of air that can be inspired
Tidal volume + inspiratory reserve volume = 3500 ml
What is functional residual capacity?
Volume of air remaining in the lung after normal expiration
ERV + RV = 2400 ml
What is vital capacity?
Maximal volume of air expired after maximal inspiration
IRV + VT + ERV = 4600 ml
What is total lung capacity?
The volume of air remaining in lung after maximal inspiration
VC + RV = 5800 ml