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Impulse Oscillometry

What is it?

Impulse Oscillometry is a test designed to measure how much resistance there is to the normal movement of air in and out of your lung using sound waves.

What is involved?

This test involves breathing normally through a tube attached to a computer.

For this test you will be seated, we will ask you to wear a peg on your nose and a physiologist may hold your cheeks from behind to ensure a good seal on the tube with your lips. You will breathe normally for 30 seconds.

During this time we will send sound waves created by a small speaker attached to the mouthpiece, into your lungs which you will barely feel.

We may ask you to do this several times.

What happens after the test?

The results of your test will be reviewed by the referring consultant and discussed at your next clinic appointment.