Natural history of nonspecific pulmonary function tests
www.pulmccm.org
Iyer et al re-checked PFTs on 1,284 people with nonspecific results (low FEV1 or FVC but normal TLC and FEV1/FVC ratio), at a median of 3 years after the abnormal test. 64% continued to have the nonspecific result; 16% had restriction; 15% had obstruction; 2% had a mixed pattern; 3% were normal. They recommend changing the current guidelines that label these people as having obstruction.
Natural history of nonspecific pulmonary function tests
Natural history of nonspecific pulmonary…
Natural history of nonspecific pulmonary function tests
Iyer et al re-checked PFTs on 1,284 people with nonspecific results (low FEV1 or FVC but normal TLC and FEV1/FVC ratio), at a median of 3 years after the abnormal test. 64% continued to have the nonspecific result; 16% had restriction; 15% had obstruction; 2% had a mixed pattern; 3% were normal. They recommend changing the current guidelines that label these people as having obstruction.