A person with stage 4 COPD, or FEV levels that are below 30 percent, has end-stage COPD. It’s the most advanced form of the disease. Symptoms of end-stage COPD are similar to the symptoms for other ...

A COPD assessment test (CAT) is a tool that can help you communicate the severity of your condition to your doctor. People with chronic obstructive pulmonary disease (COPD) often have difficulties ...

Currently, 70% of COPD cases are underdiagnosed, largely due to the difficulty of correctly performing the reference test—spirometry—on a population scale.

Once your doctor has confirmed that your symptoms are caused by COPD through a pulmonary (lung) function test, the next step is developing a treatment plan to address episodes in which you have ...

There is no single test to diagnose COPD. Doctors rely on your medical history, physical examination, lung function tests, and chest imaging tests like an X-ray or CT scan.