Respiratory Flashcards
1
Q
draw lung volumes
A
2
Q
lung volume values
A
IRV=3000mL
TV= 500mL
ERV= 1200mL
Residual V= 1200mL
Insiratory capacity= 3500mL
VC= 4700mL
FRC= 2400mL
TLC= 5900mL
3
Q
how can we measure functional residual capacity?
A
FRC=ERV+RV
measured with helium dilution and body Platysmography
4
Q
what is the anatomical dead space?
A
volume of the conducting system
nose, mouth, trachea, broncchi, bronchioles
about 150mL
5
Q
what is physiological dead space?
A
anatomical+functional dead space
6
Q
describe the transmural pressure
A
alveolar pressure minus pleural pressure
-2 to -4
force that keeps the lungs open
7
Q
A
