Can Fef 25-75% Be Used as a Valid Alternative to Fev1% in Copd Diagnosis?

Abstract

BACKGROUNDAccording to American Thoracic Society criteria FEV1% is the gold standard test in the diagnosis of COPD. The prospect of detecting lung disease, at an early stage has led to widespread measurement of FEF 25-75%. This study will provide an alternative to FEV1% in the diagnosis of COPD, so that the difficulties faced by the patients and the technicians in the measurement of FVC and FEV1% can be minimised.