Can Stethoscope Detect Asthma?

Your doctor may: Examine your nose, throat and upper airways. Use a stethoscope to listen to your breathing. Wheezing — high-pitched whistling sounds when you breathe out — is one of the main signs of asthma.

Can a doctor tell if you have asthma by listening to your lungs?

In an effort to diagnose asthma, your doctor may perform pulmonary function tests, take a family and medical history, and listen to your lungs.

How do doctors know if you have asthma?

To confirm asthma, your doctor may have you take one or more breathing tests known as lung function tests. These tests measure your breathing. Lung function tests are often done before and after inhaling a medicine known as a bronchodilator (brahn-ko-DIE-ah-lay-tor), which opens your airways.