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GMS6402 Pulmonary Final exam with verified solutions

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GMS6402 Pulmonary Final exam with verified solutions

Instelling
GMS 6402
Vak
GMS 6402

Voorbeeld van de inhoud

GMS6402 Pulmonary Final exam with
verified solutions

What is Atmospheric O2? - correct answer ✔160 mmHg
|||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




What is Inspired O2? - correct answer ✔150 mmHg
|||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




What is Alveolar O2? - correct answer ✔100 mmHg
|||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




What is Arterial O2 (PaO2)? - correct answer ✔100 mmHg
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What is Arterial CO2 (PaCO2)? - correct answer ✔40 mmHg
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What is the formula for compliance? - correct 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 - correct answer
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




✔alveoli


All of the following can be measured via spirometry EXCEPT: tidal volume, vital capacity,
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




functional residual capacity, inspiratory capacity, expiratory reserve volume - correct answer
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




✔Functional residual capacity
|||||| |||||| ||||||




Briefly describe how the radii of the various tubes change as we move from the trachea to
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




the alveoli - correct 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? - correct 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? - correct
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




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 - correct 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 - correct answer ✔decrease exponentially
|||||| |||||| |||||| |||||| |||||| |||||| ||||||




What is the typical Tidal Volume? - correct answer ✔normal breathing, 0.5 L
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




What is the typical expiratory reserve volume? - correct answer ✔air expelled after normal
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




tidal volume expiration, 2L |||||| |||||| ||||||




What is the residual volume? - correct answer ✔air that remains after maximal expiration,
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




1.2L

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