The static pressure-volume curve shown in the figure indicates the presence of which of the following?

A) Atelectasis
B) Pneumonia
C) Pneumothorax
D) Bronchospasm

Question

The static pressure-volume curve shown in the figure indicates the presence of which of the following?

A) Atelectasis 
B) Pneumonia 
C) Pneumothorax 
D) Bronchospasm

Quizplus · Accepted Answer

The static compliance (Cₛ)line shown in the figure is normal.However,the dynamic compliance (Cᴅ)curve shows that with increasing volumes there are very high pressure increases.This shows a right shift and flattening of the Cᴅ curve and is indicative of increasing airway resistance.Bronchospasm causes an increase in airway resistance.Atelectasis,pneumonia,and pneumothorax will cause both the Cₛ and Cᴅ curves to shift right and flatten.

The Static Pressure-Volume Curve Shown in the Figure Indicates the Presence