This page explains what spirometry is, why it is done, and how to prepare for your appointment. Please read it carefully before attending your test.
What is spirometry?
Spirometry is a simple breathing test that measures how well your lungs are working. It looks at how much air you can breathe out and how quickly
you can do this.
The test can help your clinician assess conditions such as asthma or chronic obstructive pulmonary disease (COPD), or to monitor an existing lung condition.
What happens during the test?
You will be asked to sit upright and breathe into a mouthpiece attached to a machine called a spirometer. You will be asked to take a deep breath in
and then blow out as hard and as fast as you can until your lungs feel empty.
This may be repeated several times to make sure the results are accurate. In some cases, you may be given an inhaler and asked to repeat the test after a short wait.
The test usually takes around 20–30 minutes.
Is the test safe?
Spirometry is generally very safe. You may feel slightly breathless, lightheaded, or cough briefly during the test, but this usually settles quickly. You
will be closely supervised throughout.
How do I prepare for my spirometry test?
- Do not smoke for at least 1 hour before your appointment.
- Do not drink alcohol for at least 4 hours before your appointment.
- Avoid eating a heavy meal for at least 2 hours before your appointment.
- Wear loose, comfortable clothing.
- Bring all of your inhalers with you.
Your clinician may ask you to stop certain inhalers for a short time before the test. If this applies to you, you will be told in advance. Do not stop any medication unless you have been advised to do so.
Feeling anxious or worried?
If you feel anxious, panicky, or worried about the test, please let the clinician or healthcare assistant know. They will take time to explain the test and support you throughout.
Do you need an interpreter?
If you need an interpreter or extra support with communication, please let us know before your appointment so this can be arranged.
After the test
Your spirometry results will be sent back to the clinician who requested the test. They will contact you to discuss the results and any next steps.
Questions or concerns
If you have any questions before your appointment, please contact us on 01706 390243.