Which of the following pathophysiologic manifestations are similar among diseases classified as parenchymal lung injury? I. interstitial edema II. alveolar edema III. surfactant dysfunction IV. decreased pulmonary compliance
A. I, II only
B. II, III only
C. III, IV only
D. I, II, III, IV
ANS: D
A. Incorrect response: See explanation D.
B. Incorrect response: See explanation D.
C. Incorrect response: See explanation D.
D. Correct response: Although the disease processes involved in parenchymal lung injury are different, pathophysiologic similarities exist. All parenchymal lung diseases have varying degrees of interstitial edema, alveolar edema, surfactant dysfunction, and decreased pulmonary compliance.
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