Lung Function Test for Asthma: Understanding Your Breathing
A lung function test for asthma helps doctors understand how well your lungs are working and whether your airways are narrowed. One of the most common tests is spirometry, which measures how much air you can breathe out and how quickly you can do so. Doctors may perform the test before and after using a bronchodilator to see whether airflow improves. Other tests may include peak flow monitoring or challenge testing when asthma is difficult to confirm. Regular lung function testing can also help monitor asthma control and treatment effectiveness. If you experience wheezing, coughing, chest tightness, or shortness of breath, speak with a qualified healthcare professional about appropriate testing.












