Doctors can use a variety of tools and tests to get a good picture of your health. When it comes to asthma, lung function tests are helpful for not only diagnosing asthma, but for monitoring your lung function as well.

There are several types of lung function tests. Your doctor may use different ones, depending on your symptoms, diagnosis or medical history.

Lung function tests can be used:

• To see if you have asthma
• To see if your asthma is controlled
• To rule out asthma if other tests to not give a clear diagnosis
  
  

Spirometry is one of the most common lung function test.

If you have already been diagnosed with asthma and you are following a treatment plan, your doctor may do these tests every time you come for an appointment to see if your treatment is working. The doctor may change your treatment based on the results of these tests.

Read more about lung function tests on our website.