11/6/2023 Experiment using increased dead space and measuring different lung volumes in normal patientsRead Now![]() The British Thoracic Society Guideline for non-CF Bronchiectasis recommends that adults and school age children should have spirometry measured at initial assessment. How often should lung function be assessed? Exhaled nasal nitric oxide levels have been shown to be markedly reduced in those with cilial dysfunction (Pasteur et al 2010). Carbon monoxide transfer factor (TLCO) – a measure of gas exchange may be in the normal range – and it has been shown to be reduced in more severe disease. The forced vital capacity (FVC) may be reduced, often in conjunction with an elevated Residual Volume (RV)/ Total Lung Capacity (TLC) ratio and normal to low TLC. Lung function tests provide objective data about the type and degree of respiratory impairment.Īirflow obstruction is the most common ventilatory pattern seen in bronchiectasis, though mixed obstructive/restrictive, restrictive or normal patterns can also be seen. ![]() Lung function tests are an important assessment tool in the diagnosis and management of bronchiectasis.
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