19 - Spirometry and Disease Flashcards
normal quiet breathing inspiration is ____ and expiration is ____
active, passive
normal healthy lungs have a ____ compliance and a ____ airway resistance
high compliance, low airway resistance
what is the resistance of airways determined by
the radius
in normal healthy lungs, the radius is large enough so that
resistance is very low
why does work of breathing increased with a reduced pulmonary compliance
more work required to expand the lungs in pulmonary fibrosis
what is the total lung capacity
5.7L
in a normal breath how much air moves in/out of lungs
500ml
end of expiration how much air in lungs
2,200ml
end of max expiration how much vol of airs in lungs
1200ml
lungs can never be maximally deflated because
gas exchange occurs continously, reduced WOB
factors that may affect lung volumes include
age, gender, anatomical build, smoking, fitness,
a spirogram is a
volume time curve
tv stands for
tidal volume
irv
inspiratory reserve volume
ic
inspiratory capacity
