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Doctor insights on: Emphysema Test

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I had a stress test and my o2 remained at 99% throughout the test. Does that rule out COPD or emphysema?

I had a stress test and my o2 remained at 99% throughout the test.  Does that rule out COPD or emphysema?

COPD and stress test: It depends on the "severity" of your copd. Some people are obstructed but have no problem with their oxygen level. You cannot rule out COPD or emphysema just based on a stress test. You can say that if you had copd, it is not that severe since your oxygen remained normal. To rule out copd, one has to undergo pft or pulmonary function tests which would let us know if your airways are obstructed. ...Read more

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Dr. Sue Ferranti
909 doctors shared insights

Copd (Definition)

COPD may include chronic bronchitis, emphysema, or both. Chronic bronchitis is the production of increased mucus caused by inflammation. Bronchitis is considered chronic if you cough and produce excess mucus most days for three months in a year, two years in a row. Emphysema is a disease that damages the air sacs and/or the smallest breathing tubes in the lungs. ...Read more


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Could you have early emphysema with a normal ("unremarkable")pulmonary function test?

Could you have early emphysema with a normal ("unremarkable")pulmonary function test?

Definition...: By definition, COPD is chronic obstructive pulmonary disease. If the pulmonary function tests do not show chronic obstruction, then COPD is not diagnosed. However, chronic obstruction can develop especially if the person continues to smoke. Asthma can be present with unremarkable pulmonary function test. Repeat the test in 6-12 months if COPD is still a concern. Good luck! ...Read more

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Possible for a pulmonary function test rule out emphysema 100%?

Possible for a  pulmonary function test rule out emphysema 100%?

Early on no: In fact emphysema might have a normal spirograph, a diffusion test (dlco) is usually abnormal even early in the disease, but both can be within normal limits. No test is perfect. ...Read more

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Could a pulmonary function test rule out emphysema 100%?

Could a pulmonary function test rule out emphysema 100%?

99%: It is possible to have a normal lung function even when there is clear evidence on a ct scan showing changes of emphysema. In those cases, medications are not usually needed. ...Read more

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My spirometry test results . Do I have early emphysema? (my results) fvc 107% of predicted fev1 95% of predicted fev1/fvc 90% of predicted fef25/75 62% of predicted pefr 125% of predicted im a 45 year old male who quit smok

My spirometry test results . Do I have early emphysema? (my results)       
fvc         107% of predicted
fev1        95% of predicted
fev1/fvc   90% of predicted
fef25/75  62% of predicted
pefr        125% of predicted
im a 45 year old male who quit smok

Spirometry: The large airways appear to be within normal limits but the fef25-75 is suboptimal. The fef25-75 is currently the best method to evaluate the small airways of which it appears that you do have some obstruction taking place. ...Read more

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Can a normal pulmonary function test (spirometry test) rule out COPD and emphysema?

Can a normal pulmonary function test (spirometry test) rule out COPD and emphysema?

Yes: You will have abnormal lung function test if you have COPD or emphysema. Do note that smoking is not good for you at any amount and some genetically-susceptible people may get emphysema even with light tobacco exposure. ...Read more

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Angioendema?Can it be caused by ACE inhibitors.Can a ACE test level be decreased in other conditions.Emphysema, lung cancer, cystic fibrosis.Copd ?

Angioendema?Can it be caused by ACE inhibitors.Can a ACE test level be decreased in other conditions.Emphysema, lung cancer, cystic fibrosis.Copd ?

ACE Inhibitors: Angiotensin converting enzyme (ace) inhibitors are the leading cause of drug-induced angioedema in the U.S. Because they are widely prescribed. Most common is swelling of the lips, tongue, or face, although episodic abdominal pain due to intestinal angioedema may occur. Urticaria and itching are notably absent. The rest of the question is too complex to address here. Thanks. ...Read more

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Is emphysema a long term or short term disease?

Is emphysema a long term or short term disease?

Life-long...: COPD is a chronic, incurable and slowly progressive disease. Once a patient has this disease, they will have it for the rest of their lives. ...Read more

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Dr. Sue Ferranti
487 doctors shared insights

Emphysema (Definition)

Emphysema is also known as COPD. Emphysema is a lung disease caused by destruction of lung tissue--specifically the alveoli, which are the smallest sac-like units of the lung responsible for oxygen exchange. It is characterized by shortness of breath, an expanded chest, and possible signs of low oxygen in the body such as bluish ...Read more