Peak Flow Test
Peak flow is a measure of how fast you can blow air out of your lungs. In so doing, it measures how wide the airways in the lungs are.
For people with asthma, this simple test can show how well their asthma is being controlled and involves them blowing into a tube. This tube is calibrated on the side which enables the technician to take a reading and give them appropriate information based on the result.
There is no blood sample taken for this test.
