Spirometry is rarely used alone to diagnose a lung condition. It is typically combined with other findings, such as a physical exam, medical history review, and imaging tests, to reach a diagnosis.

A lung diffusion capacity test measures how well oxygen moves from your lungs into your blood. This test is similar to spirometry. You breathe into a tube attached to a machine.

To diagnose chronic obstructive pulmonary disease (COPD), doctors typically use spirometry to measure your lung function. They usually also perform other tests to monitor the damage to your lungs.

Spirometry scores tell doctors how much air you’re able to pull into your lungs and how quickly you can expel it. This test is helpful for diagnosing and treating breathing conditions like COPD.

Spirometry is a lung function test that can distinguish restrictive conditions — like fibrosis, sarcoidosis, or obesity-related lung restriction — from obstructive lung diseases — such as ...

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COPD, or chronic obstructive pulmonary disease, affects more than 30 million Americans, yet many have never heard of it. COPD ...

If you’re a current or former smoker, learn which important medical tests — including lung tests — you should discuss with your doctor. 8 Medical Tests Every Smoker Needs ...