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A 39-year-old female asked:

Had my pulmonary function test. fev1 117%, dclo 93%, rv 93%, erv 63%. is this okay? i've been told i had air trapping before. i have sob on exertion.

2 doctor answers2 doctors weighed in
Dr. Joram Seggev
Specializes in Internal Medicine - Allergy & Immunology
Normal PFTs: You don't tell us what your fvc is, nor your weight. Your fev1 is high normal, residual volume and diffusion capacity are normal as well. These data essentially rule out a severe problem. The low erv can be due to: incomplete exhalation and obesity being the most common reasons. The normal rv makes air trapping unlikely. Your symptoms are unlikely to be due to your lungs. Talk to your physician.
Dr. Amrita Dosanjh
Pediatrics and Pediatric Pulmonology 36 years experience
Incomplete report: Another set of measurements which will help define whether there is air trapping is the RV/TLC ratio which should be listed on the report. It can be elevated in obstructive disease. I hope that this helps.

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Last updated Sep 11, 2014

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