Lung functions tests - Spirometry

This leaflet provides general information on the lung function tests that you have been referred for. If we need to do other tests that are not described in this information (e.g. Carbon Monoxide monitoring, Oxygen saturation measurement or Exhaled Nitric Oxide) we will discuss them with you on the day. Your appointment letter will tell you the location, date, and time of your appointment.

What are lung function tests?

Lung function tests look at how well your lungs and airways are working. We compare the results you get with average results for someone of your age, gender and height. 

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