The Lister Hospital
Chelsea Bridge Road, SW1W 8RH London
Reversibility assessment
A reversibility assessment is a test to see if your breathing problems improve with the help of an inhaler or medication.
About
A reversibility assessment is often a part of a spirometry test, which is a test to see how well your lungs are working.
Both tests can help you to find out if you have a breathing problem, such as asthma.
Need to know
Our respiratory physiologists will start by asking you to carry out a baseline spirometry. This involves breathing in and out of a spirometer, a special instrument that measures how much air you can push out your lungs in one breath.
They will then ask you to breathe in increasing doses of a dry powder. After each dose, you will be asked to repeat the spirometry so we can assess any changes. If your airway is normal, then it won't react to the powder. If you have hyper-sensitive airways (such as in asthma), then the powder will affect the airways and we'll see a change in your spirometry results during the test. A reversibility assessment lasts about 30 minutes in a lung function consultation room.
They will then ask you to breathe in increasing doses of a dry powder. After each dose, you will be asked to repeat the spirometry so we can assess any changes. If your airway is normal, then it won't react to the powder. If you have hyper-sensitive airways (such as in asthma), then the powder will affect the airways and we'll see a change in your spirometry results during the test. A reversibility assessment lasts about 30 minutes in a lung function consultation room.
A spirometry and reversibility assessment doesn't require any special preparation beforehand. Your GP or consultant respiratory therapist will explain what's involved and answer any questions you might have.
Your GP or respiratory physiologist will explain the results of the test immediately after it. You'll also be able to go home straight after.
Our Reversibility assessment locations
The Harley Street Clinic
35 Weymouth Street W1G 8BJ London
This content is intended for general information only and does not replace the need for personal advice from a qualified health professional.