Respiratory Lab Flashcards
(31 cards)
Male total lung capacity
6,000 ml
Male inspiratory reserve volume
3,000 ml
Male tidal volume
500ml
Male functional residual capacity
2,500 ml
Male inspiratory capacity
3,500 ml
Male expiratory reserve volume
1,000ml
Male residual volume
1,500ml
Male vital capacity
4,500 ml
The amount of air inspired or expired during normal, quiet respiration
Tidal volume
The amount of air which can be forcefully inspired above and beyond that taken in during a normal inspiration
Inspiratory reserve volume
The max amount of air which can be forcefully expired following a normal expiration
Expiratory reserve vol
The amount of air which remains trapped in the lungs after a maximum expiratory effort
Residual volume
Combinations of two of more volumes
Capacities
The total amount of air the lungs can obtain
Sum of all 4 volumes
Total lung capacity
The max amount of air that can be forcefully expired after a max inspiration
Vital capacity
The amount of air remaining in the lungs after a normal expiration
Functional residual capacity
The max amount of air which can be inspired after a normal expiration
Inspiratory capacity
Instrument used to measure respiratory volumes
Spirometer
How to measure tidal pressure
- Set spirometer to 0
2. Take a normal inspiration and exhale a normal expiration into the spirometer
Respiratory min vol formula
RMV= tidal volume x respiratory rate per minute
How to measure reserve volume
- Set the spirometer to 0
2. Exhale forcefully into the spirometer after a normal expiration
How to measure vital capacity
- Set spirometer to 0
- Inhale as deeply as possible
- Exhale into the spirometer with max effort while holding your nose
- Repeat 3x and record the largest vol
A better index of respiratory reserve than vital capacity test
Subject takes five deep breaths and holds his breath for as long as possible after the last inspiration
Heymer test of respirstory reserve
Male respiratory reserve values
50-70 seconds
