Silicosis other diagnostic studies
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Lung Function Tests These tests are used in diagnosis and follow-up of patients to detect lung involvement, support the diagnosis of severity in each case, and guide future occupational choices. Spirometry is performed at the time of diagnosis and at check-ups for the evaluation of possible functional deterioration22-23 Diffusion capacity is affected in the complicated forms of the disease and is sensitive to the presence of fibrosis.14 Static lung volumes can demonstrate a reduction in total lung volume associated with radiological involvement. These examinations are performed in patients with complicated silicosis or if abnormalities are detected on standard spirometry (consistent recommendation). Pulse oximetry and arterial blood gases are useful for establishing severity, since they can detect respiratory failure (PaO2<60 mmHg with SpO2<90%) in the more advanced cases.