A member asked:

What would cause on lung function tests, dlco 60-75%, increased tlc and narrowing of air tubes? finger o2 monitor 90%. heart is fine, nad on chest ct

A doctor has provided 1 answer
Dr. Michael Sanders answered

Specializes in Pulmonology

See below: It would be difficult to say without all the numbers. But, if your TLC is high, then that's an indication of hyperinflation, which goes along with COPD. So does the decreased DLCO. But again, this is just generalities; would be glad to review all you results with you if needed.

Answered 6/6/2017

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