What Is a Lung Function Test?

Article Translations: (Spanish)

Lung Function Test

How well do your lungs work? In other words, how well are you breathing? A lung function (say: FUNK-shun) test can help your doctor answer that question. For one of them, called spirometry, you take a breath and then blow the air out as fast and long as you can. These tests can help a doctor find out if someone has asthma.

Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.