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If things get worse

Find information on how to recognise worsening cystic fibrosis.

Recognising worsening CF

Symptoms of CF can get worse quickly or over a longer period of time. Lung function, measured with FEV1 and FVC, can indicate the severity of lung disease or presence of an exacerbation, and you may have symptoms such as breathlessness, decreased ability to exercise, and wheezing or coughing with increased production of phlegm (mucus).
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