The chest x-ray below is from a patient in heart failure (Right). Compared to th
ID: 3473851 • Letter: T
Question
The chest x-ray below is from a patient in heart failure (Right). Compared to the normal CXR (Left) it has a hazy appearance. Which of the following best explains the cause of the findings on CXR and what is producing the hazy appearance?
Fluid / increased hydrostatic pressure
Air / decreased hydrostatic pressure
Fluid / decreased oncotic pressure
Air / increased oncotic pressure
Gas / rupture of airway
A.Fluid / increased hydrostatic pressure
B.Air / decreased hydrostatic pressure
C.Fluid / decreased oncotic pressure
D.Air / increased oncotic pressure
E.Gas / rupture of airway
Explanation / Answer
The hazy appearance in chest X ray that occurs in patients of congestive right heart failure is caused by fluid in the alveolar space. This leakage of fluid into alveolar space is caused due to increased hydrostatic pressure in the capillaries. Ground glass opacity is the first precursor of alveolar edema and impending consolidation. Therefore, the answer for this question is option A (fluid / increased hydrostatic pressure).
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