GMS6402 Pulmonary Final exam questions
with correct answers
What is Atmospheric O2? - 🔰CORRECT ANSWERS ✔✔160
mmHg
What is Inspired O2? - 🔰CORRECT ANSWERS ✔✔150 mmHg
What is Alveolar O2? - 🔰CORRECT ANSWERS ✔✔100 mmHg
What is Arterial O2 (PaO2)? - 🔰CORRECT ANSWERS ✔✔100
mmHg
What is Arterial CO2 (PaCO2)? - 🔰CORRECT ANSWERS ✔✔40
mmHg
What is the formula for compliance? - 🔰CORRECT ANSWERS
✔✔C = deltaV / deltaP
change in lung volume/ change in pressure
1 \\\\\\/ \\\\\\
25
,The vast majority of the total surface area of the lung is found in
the - 🔰CORRECT ANSWERS ✔✔alveoli
All of the following can be measured via spirometry EXCEPT: tidal
volume, vital capacity, functional residual capacity, inspiratory
capacity, expiratory reserve volume - 🔰CORRECT ANSWERS
✔✔Functional residual capacity
Briefly describe how the radii of the various tubes change as we
move from the trachea to the alveoli - 🔰CORRECT ANSWERS
✔✔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? - 🔰CORRECT
ANSWERS ✔✔+4 cm H2O
2 \\\\\\/ \\\\\\
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, 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? - 🔰CORRECT ANSWERS
✔✔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 - 🔰CORRECT
ANSWERS ✔✔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 - 🔰CORRECT
ANSWERS ✔✔decrease exponentially
What is the typical Tidal Volume? - 🔰CORRECT ANSWERS
✔✔normal breathing, 0.5 L
3 \\\\\\/ \\\\\\
25
with correct answers
What is Atmospheric O2? - 🔰CORRECT ANSWERS ✔✔160
mmHg
What is Inspired O2? - 🔰CORRECT ANSWERS ✔✔150 mmHg
What is Alveolar O2? - 🔰CORRECT ANSWERS ✔✔100 mmHg
What is Arterial O2 (PaO2)? - 🔰CORRECT ANSWERS ✔✔100
mmHg
What is Arterial CO2 (PaCO2)? - 🔰CORRECT ANSWERS ✔✔40
mmHg
What is the formula for compliance? - 🔰CORRECT ANSWERS
✔✔C = deltaV / deltaP
change in lung volume/ change in pressure
1 \\\\\\/ \\\\\\
25
,The vast majority of the total surface area of the lung is found in
the - 🔰CORRECT ANSWERS ✔✔alveoli
All of the following can be measured via spirometry EXCEPT: tidal
volume, vital capacity, functional residual capacity, inspiratory
capacity, expiratory reserve volume - 🔰CORRECT ANSWERS
✔✔Functional residual capacity
Briefly describe how the radii of the various tubes change as we
move from the trachea to the alveoli - 🔰CORRECT ANSWERS
✔✔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? - 🔰CORRECT
ANSWERS ✔✔+4 cm H2O
2 \\\\\\/ \\\\\\
25
, 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? - 🔰CORRECT ANSWERS
✔✔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 - 🔰CORRECT
ANSWERS ✔✔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 - 🔰CORRECT
ANSWERS ✔✔decrease exponentially
What is the typical Tidal Volume? - 🔰CORRECT ANSWERS
✔✔normal breathing, 0.5 L
3 \\\\\\/ \\\\\\
25
