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Exhaled carbon monoxide test

… last reviewed: 1 January 2020 Next review due: 1 January 2023 … Find out what it is, what it's used for, what happens …

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Fractional exhaled nitric oxide (FeNO) test

… need to have other tests too, such as spirometry and a peak flow test . How should I prepare? Smoking before the FeNO … children). Some devices will make a sound to help keep the flow at the right level throughout the test. You may have to …

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Tests to measure your oxygen levels

… last reviewed: 1 January 2020 Next review due: 1 January 2023 … Tests to measure your oxygen levels …

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Holidays and travel if you have OSA

… last reviewed: 1 November 2021 Next review due: 1 November 2024 … If you have OSA and use a CPAP machine, travelling can …

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What are the causes of pulmonary fibrosis?

… Page last reviewed: 1 June 2022 Next review due: 1 June 2025 … On this page we explain the different possible causes …