Lung volume & capacities lab!
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what does TLC stand for and what is the equation
Total lung capacity TLC= RV + ERV + TV + IRV
what does VC stand for and what is the equation
Vital Capacity VC= ERV + TV + IRV
what does IC stand for and what is the equation
inspiratory capacity IC = TV + IRV
what does FRC stand for and what is the equation
Functional residual capacity FRC= RV + ERV
what does FVC stand for and what is it
Forced Vital Capacity -how much air someone can force out total
what does FEV1 stand for and what is it
forced expiratory volume in 1second -how much air you can force out in the 1st second
if someone has an obstructive lung disease what happens to the FEV1/ FVC ratio
decreases less than 0.7
if someone has an restrictive lung disease what happens to the FEV1/ FVC ratio
Normal! above 0.7
what does a normal flow -volume loop look like
nice smooth loop
what does a obstructive flow -volume loop look like
scooped-out curve
what does a restrictive flow-volume loop look like
small skinny loop
what happens to a persons FEV1 when they have an obstructive lung disease
decrease
what happens to a persons FVC when they have an obstructive lung disease
Decrease/ normal
what happens to a persons FEV1 when they have a restrictive lung disease
decrease
what happens to a persons FVC when they have a restrictive lung disease
decrease
impacts- obstructive lung disease
hinder person’s ability to exhale all the air from lungs -narrows pulmonary airways -air remains trapped n lungs -exhalation takes longer
impacts- restrictive lung disease
-hard time fully expanding lungs when inhaling -more difficulty filling lungs with air -lungs restricted
when can restrictive lung disease occur
when tissue in chest wall becomes stiffened, or due to weekend muscles and damaged nerves