GMS6402 Pulmonary Final Exam Questions With Verified Answers.
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Course
GMS6402
Institution
GMS6402
GMS6402 Pulmonary Final Exam Questions
With Verified Answers.
What is Atmospheric O2? - answer160 mmHg
What is Inspired O2? - answer150 mmHg
What is Alveolar O2? - answer100 mmHg
What is Arterial O2 (PaO2)? - answer100 mmHg
What is Arterial CO2 (PaCO2)? - answer40 mmHg
What is the formula fo...
GMS6402 Pulmonary Final Exam Questions
With Verified Answers.
What is Atmospheric O2? - answer✔160 mmHg
What is Inspired O2? - answer✔150 mmHg
What is Alveolar O2? - answer✔100 mmHg
What is Arterial O2 (PaO2)? - answer✔100 mmHg
What is Arterial CO2 (PaCO2)? - answer✔40 mmHg
What is the formula for compliance? - answer✔C = deltaV / deltaP
change in lung volume/ change in pressure
The vast majority of the total surface area of the lung is found in the - answer✔alveoli
All of the following can be measured via spirometry EXCEPT: tidal volume, vital capacity,
functional residual capacity, inspiratory capacity, expiratory reserve volume -
answer✔Functional residual capacity
Briefly describe how the radii of the various tubes change as we move from the trachea to the
alveoli - answer✔The radii of the tubules decrease due to shredding of epithelial cells.
Conducting zones (g0-16) are surrounded by columnar or cuboidal epithelia, thick layers of
cartilage, and smooth muscle. Respiratory zones (g17-23) are surrounded by type I and II
epithelia. The absence of columnar/cuboidal epithelia, cartilage and smooth muscle results in a
much smaller radius.
What is the Transpulmonary pressure if pleural pressure is -7 cm H2O and alveolar pressure is -3
cm H2O? - answer✔+4 cm H2O
A lung compliance test indicates that a 3 cm H2O change in thanspulmonary pressure generates
a 0.9 L change in lung volume. What is this patient's lung compliance? - answer✔0.3 L air/cm
H2O
Airway resistance across a set of airways is lowest under which of the following conditions?
-airway radius is large and the length of the tube is large
-airway radius is large and the length of the tube is small
-airway radius is small and airways are in series.
-airway radius is small and airways are in parallel.
-airway radius is large and gas viscosity is increased - answer✔airway radius is large and the
length of the tube is small
As the lungs fill with air and we move from a low lung volume to higher lung volumes, airway
resistance will - answer✔decrease exponentially
What is the typical Tidal Volume? - answer✔normal breathing, 0.5 L
What is the typical expiratory reserve volume? - answer✔air expelled after normal tidal volume
expiration, 2L
What is the residual volume? - answer✔air that remains after maximal expiration, 1.2L
What is the forced vital capacity? - answer✔air which can be forcibly exhaled from the lungs
after taking the deepest breath possible, 5L
What is the Vital capacity? - answer✔air that is exhaled after maximal inspiration, 5L
What is total lung capacity? - answer✔max volume the lungs can be expanded, 6L
What is the functional residual capacity? - answer✔air left in lungs below tidal, 2.5L
What is the inspiratory reserve volume? - answer✔air that can be inhaled after tidal, 2.5L
What is the inspiratory capacity? - answer✔air that can be drawn into lungs after normal
expiration (tidal + above tidal), 3L
What is an obstructive lung disease? - answer✔shortness of breath due to difficulty exhaling all
air from lungs
ex: asthma, cystic fibrosis
What is a restrictive lung disease? - answer✔inability to fully fill their lungs with air, restricted
from fully expanding
ex: interstitial lung disease
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