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Asthma

Tests

The Latest

Doctor listening to woman's lungs.

How Is Severe Asthma Diagnosed?

Poor treatment adherence and persistent triggers are often the most common causes of severe asthma.

What Is a Spirometry Test?

What Is a Spirometry Test?

A spirometry test measures how much air flows in and out of your lungs and can be used to confirm whether you have asthma or another disease.