Medical Matters > Cardiopulmonary Exercise Testing (CPET)

ME Essential Spring 2021


Why aren’t the oxygen levels of ME sufferers routinely checked?


The simple answer is that routinely measuring oxygen levels in ME/CFS isn’t going to help with either diagnosis or management – unless there is some indication that the person may also have an underlying respiratory disease.

What can be helpful in relation to both diagnosis and management of ME/CFS is having a two-day cardiopulmonary exercise test – which measures dynamic oxygen uptake and use. But Cardiopulmonary Exercise Testing (CPET) testing is not easy to organise – as it is a hospital-based investigation.

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Information provided by The ME Association should not be construed as medical advice. Don't assume any new or worsened symptoms are simply the result of having ME/CFS or Long Covid. We recommend that any information you deem relevant is discussed with your NHS GP as soon as possible. It is important that you seek personalised medical advice from the GP who is in charge of your care and who knows you well.

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