Which tests can show bronchiectasis
Bronchiectasis has congenital factors, but also acquired causes, such as immune deficiency is a family genetic factor, acquired lung disease continues, the two promote each other to form bronchiectasis. In terms of disease, if infectious lung disease shows hypoxemia, we should be on guard against bronchiectasis. The specific manifestations of hypoxic blood syndrome are as follows: obvious increase of white blood cells during infection, left shift of nucleus, coughing up malodorous sputum and so on.
Bronchoscopy
If sputum is cultured, pathogenic bacteria can be seen, and serum immunoglobulin (B lymphocytes), lymphocyte count and skin test (T lymphocytes), white blood cell count and classification (phagocytes), complement components (CH50, C3, C4) can also be measured. In routine examination, lung function tests such as chest X-ray, vital capacity, CT and bronchoscopy can be used to determine whether it is bronchiectasis.
In the examination of lung function such as vital capacity, obstructive ventilation disorders such as the decrease of FEV1, FEV1/FVC and PEF can be found, that is, progressive pulmonary function damage. If there is hypoxemia, it is the late stage of bronchiectasis. About 10% of chest X-rays showed no abnormality or only thickened lung lines. If it is cystic bronchiectasis, there will be multiple irregular honeycomb shadows in the rough lung lines on the chest film, and there may also be round, oval transparent areas or small fluid levels at the bottom of the lung and near the hilum.
Bronchiectasis
If the columnar bronchiectasis, chest film often appear more lung texture in the appearance of two parallel linear shadows, that is, the central transparent tubular shadow, used to be called "track sign". Chest CT examination can further diagnose cystic bronchiectasis and will be affected by infection and mucus in the lumen. The bronchoscope, or fiberoptic bronchoscope, can determine the site of dilatation, bleeding and obstruction, and can be washed locally, and the lavage solution can be obtained for smear Gram staining or bacterial culture, which is helpful for diagnosis and treatment.
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