Respiratory Volumes, Capacities, and Rates Flashcards
What are the 4 respiratory volumes
- Tidal volume 2. Inspiratory reserve volume 3. Expiratory reserve volume 3. Residual volume
Amount of air inhaled/ exhaled in one respiratory cycle at rest
Tidal volume
Amount of air inhaled after normal tidal volume
Inspiratory reserve volume
amount of air exhaled after normal tidal volume
Expiratory reserve volume
Volume of air left in lungs after maximal exhalation
Residual volume
What are the 3 respiratory capacities
- Inspiratory capacity 2. total lung capacity 3. vital capacity
Maximum volume of air that can be inhaled following a resting state
Inspiratory capacity
maximum volume of air that lungs can accommodate after maximum inspiration
Total lung capacity
Total amount of air exhaled after maximal inhalation
Vital capacity
What are the 2 respiratory rates
- Forced expiratory volume 2. Maximum voluntary ventilation
Measures how much air a person can exhale during a forced breath in a given time period
Forced expiratory volume
Maximum amount of air that can be inhaled and then exhaled in a 12-15 second interval
Maximum voluntary ventilation
Increased respiratory rate
hyperventilation
hyperventilation may lead to
hypocapnia (low blood CO2 levels)
Decreased respiratory rate
Hypoventilation