Study Overview: This study is looking at a tool called impulse oscillometry (IOS) to see if it helps in keeping track of asthma in adults. We're interested in how this tool works compared to other asthma tests when patients change their asthma medicines.
Who Can Join: Adults with asthma who are seeing their doctor at the hospital and have been told to change their asthma medicine can join. If your asthma is unstable, like needing extra medicine or having other health problems in the last month, you can't join.
- Study Duration: The study lasts for about 3 to 6 months.
- Visits Required: Two visits are needed: one at the start and one after 3 to 6 months.
- Tests Involved: Tests include breathing tests and answering questions about asthma.
Important Terms: Impulse oscillometry (IOS) is a method to check your lungs by measuring how air moves through them. FEV1 is a test that measures how much air you can blow out in one second. We will compare these with other asthma tests to see if IOS gives us more helpful information.