Lab 7- Spirometry Flashcards
RR
respiration rate
number of breaths per minute
MV
minute ventilation
volume of air moved in one minute
TV
tidal volume- .5 L
volume of air inspired or expired during a normal breath
ERV
expiratory reserve volume- 1.5 L
additional volume of air that can be expired after a normal breath
IRV
inspiratory reserve volume- 2.5 L
additional volume of air that can be inspired after a normal breath
VC
vital capacity- 4.5 L
maximum amount of air that can be moved in a max exhalation
VC = TV + IRC + ERV
TLC
total lung capacity- 5.5 L
maximum amount of air that can be present in lungs
TLC = VC + RV
SVC
slow vital capacity
volume of air that can expired at a normal rate after max inhalation
FVC
forced vital capacity
volume of air that can expired by the quickest possible exhalation after a max inhalation (loop)
FEV1
forced expiratory volume
volume of air moved during the first second of FVC
MVV
maximum voluntary ventilation
max volume of air that can be moved on expiration while breathing deeply and as rapidly as possible
RV
residual volume- 1 L
volume of air present in lungs at the end of forceful expiration
AVR
alveolar ventilation rate
amount of air available for gaseous exchange in alveoli
ADS
anatomical dead space
volume of air present in conducting zone not available for gaseous exchange
avg ADS
0.15 L