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What are the clinical characteristics of hypersensitivity pneumonitis? Tiritona and fever Dry cough Weight gain Obstructive lung disease The acute ...

What are the clinical characteristics of hypersensitivity pneumonitis?
Tiritona and fever
Dry cough
Weight gain
Obstructive lung disease
The acute form of hypersensitivity pneumonitis is associated with a restrictive type of ventilatory impairment.
The chronic form of hypersensitivity pneumonitis is characterized by small irregular linear opacities, distortion of architecture, and bronchiectasis by traction.
The radiological observations in subacute hypersensitivity pneumonitis can be resolved 10 days to 3 months after antigen withdrawal.
The presence of micronodules and ground-glass opacities is an important radiological observation that helps distinguish chronic hypersensitivity pneumonitis from idiopathic pulmonary fibrosis and other chronic fibrotic interstitial lung diseases.
a) I and II are correct.
b) II and III are correct.
c) III and IV are correct.
d) II and IV are correct.
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