To find out if you have emphysema, your doctor or other healthcare professional asks about your medical and family history, smoking, and whether you're often around other lung irritants. Your healthcare professional does a physical exam that includes listening to your lungs. You may have imaging tests, lung function tests and lab tests.

A spirometer is a diagnostic device that measures the amount of air you can breathe in and out and the time it takes you to breathe out completely after you take a deep breath.
Also called pulmonary function tests, lung function tests measure the amount of air you can breathe in and breathe out, and whether your lungs deliver enough oxygen to your blood.
Spirometry is the most common test to diagnose emphysema. During spirometry you blow into a large tube connected to a small machine. This measures how much air your lungs can hold and how fast you can blow the air out of your lungs. Spirometry tells how much airflow is limited.
Other tests include measurement of lung volumes and diffusing capacity, six-minute walk test, and pulse oximetry.
Lung function tests and imaging tests can show whether you have emphysema. And they also can be used to check your condition over time and see how well treatments are working.
Blood tests aren't used to diagnose emphysema, but they may give more information about your condition, find the cause of your symptoms or rule out other conditions.
Treatment is based on how severe your symptoms are and how often you have exacerbations. Effective therapy can control symptoms, slow how fast the condition worsens, lower the risk of complications and exacerbations, and help you lead a more active life.
The most important step in any treatment plan for emphysema is to quit all smoking. Stopping smoking can keep emphysema from getting worse and making it harder to breathe. Talk with your healthcare professional about stop-smoking programs, nicotine replacement products and medicines that might help.
Several kinds of medicines are used to treat the symptoms and complications of emphysema. You may take some medicines on a regular basis and others as needed. Most medicines for emphysema are given using an inhaler. This small, handheld device delivers the medicine straight to your lungs when you breathe in the fine mist or powder. Talk with your healthcare professional so that you know the right way to use the inhaler prescribed.
Medicines may include:
Oxygen therapy. If you have severe emphysema with low blood oxygen levels, you may need extra oxygen at home. You can get this extra oxygen to your lungs through a mask or a plastic tubing with tips that fit into your nose. These attach to an oxygen tank. Lightweight, portable units can help some people get around more.
Supplemental oxygen can help your breathing during physical activity and help you sleep better. Many people use oxygen 24 hours a day, even when resting.
When exacerbations occur, you may need added medicines, such as antibiotics, oral steroids or both. You also may need supplemental oxygen or treatment in the hospital. Once symptoms get better, your healthcare professional can talk with you about what steps to take to help stop future exacerbations.
Depending on the severity of your emphysema, your healthcare professional may suggest one or more different types of surgery, including:
For adults with emphysema related to AAT deficiency, treatment options include those used for people with more-common types of emphysema. Some people can be treated by also replacing the missing AAT protein. This may stop more damage to the lungs.
If you have emphysema, you can take steps to slow how fast it worsens and to protect yourself from complications:
Avoid triggers. These include fumes from paint and automobile exhaust, some cooking odors, certain perfumes, and even burning candles and incense. Change furnace and air conditioner filters regularly to limit pollutants. Get your house checked for radon.
Air pollution also can irritate your lungs, so check daily air quality forecasts before going out. Figure out what may trigger exacerbations for you and avoid them as much as possible.
Avoid respiratory infections. Do your best to stay away from people who have a cold or the flu. If you must be with large groups of people during cold and flu season, wear a face mask. Also wash your hands often and carry a small bottle of alcohol-based hand sanitizer to use when needed.
And be sure to get your annual flu vaccine in the fall to help prevent infections that can worsen your emphysema. Ask when you need the pneumococcal vaccine, COVID-19 vaccines and other vaccines.
If your primary healthcare professional thinks that you may have emphysema, you'll likely be referred to a doctor who specializes in lung conditions called a pulmonologist.
You might want to take a friend or family member with you to your appointment. Someone who goes with you can help you remember information. Take notes if this helps.
Before your appointment, make a list of the following information:
Questions to ask may include:
Feel free to ask other questions.
Your healthcare professional may ask you questions, such as:
Be ready to answer questions so that you have time to talk about what's most important to you.
Trouble breathing can limit your ability to do daily activities. You may have to give up some activities you used to enjoy. Your family and friends may find they need to adjust to some of these changes too. Here are some suggestions that may help: