Bronchiectasis other diagnostic studies

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Bronchiectasis Other Diagnostic Studies

Lung Function Tests

• Early in the disease, patients will present with lung function tests that represent an obstructive disorder (FEV1/FVC ratio <80%). This indicates the inflammation and involvement of the small airways.
• As the disease progresses, the lung function tests represent a restrictive disorder (FEV1/FVC ratio > or = 80%). This indicates the destruction of the lung tissue and small airways.