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Image Based Question – 73761

Question

The given graph likely depicts which of the following disease?

A. Bronchial asthma

B. Emphysema

C. Interstitial lung disease

D. Normal study

 

Show Answer

Correct Answer » C

Explanation

Ans: C.  Interstitial lung disease 

(Ref Ganong 24/e p631)

  • Pressure-volume loop – Compliance curve.
  • Shows decreased slope – Implying decreased compliance (AV/AP).
  • Typically seen in restrictive lung diseases & interstitial lung disease.
  • Emphysema – Obstructive lung conditions & increases compliance.
Static Expiratory Pressure-Volume Curves of Lungs
Shift Shift Compliance
Downward & to right
  • Pulmonary edema°
  • Interstitial pulmonary fibrosis
Compliance is decreased°
Upward & to left
  • Emphysema°
Compliance is 

 

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