Lung Volume Vocabulary Flashcards
Anatomic dead space
Volume of air that occupies non-respiratory conducting airways
Expiratory reserve volume
Max volume of air that can be exhaled after NORMAL tidal exhalation (~15% of total lung volume)
Forced expiratory volume
Max volume of air exhaled
Forced vital capacity
volume of air expired during FORCED MAX EXPIRATION after forced max inspiration
Functional residual capacity
Volume of air in the lungs after normal exhalation
ERV + RV (~40% total lung volume)
Inspiratory capacity
Max volume of air that can be INSPIRED after NORMAL exhalation
Inspiratory reserve volume
Max amount of air that can be drawn into lungs after normal tidal inhalation
Peak expiratory flow
Person’s max speed of expiration
Residual flow
Volume of gas remaining in lungs after max expiration
Tidal volume
Total volume inspired and expired with each breath during quiet breathing
Total lung capacity
Volume of air in the lungs after max inspiration
TLC = RV + VC
Vital capacity
Volume change that occurs between max inspiration and max expiration
VC = TV + IRV + ERV
