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Set 21 Static Lung And Chest Wall Mechanics

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Question 1

(Multiple Choice)

Free
A patient's lung compliance was measured with the use of an intraesophageal balloon (a measure of pleural pressure).When he has inspired 500 mL,his intraesophageal pressure decreases from -3 cm H2O at FRC to -7 cm H2O.What is his lung compliance?

A)1.67 L/cm H2O
B)0.71 L/cm H2O
C)0.500 L/cm H2O
D)0.125 L/cm H2O

Answer

Question 2

(Multiple Choice)

Free
If the compliance of the lung is 0.2 L/cm H2O and the compliance of the chest wall is 0.2 L/cm H2O,what is the compliance across the respiratory system (Crs)?

A)0.1 L/cm H2O
B)0.4 L/cm H2O
C)1.0 L/cm H2O
D)4.0 L/cm H2O

Answer

Question 3

(Multiple Choice)

Free
What is the pressure in the alveolus when the translung pressure is 3.5 cm H2O and the pleural pressure is -8.5 cm H2O?

A)-5 cm H2O
B)0 cm H2O
C)5 cm H2O
D)-12 cm H2O

Answer