Open AccessAcceptable alternatives for forced vital capacity in the spirometric diagnosis of bronchial asthma
Author(s) -
Mohamed Faisal Lutfi
Publication year - 2011
Publication title -
international journal of applied and basic medical research/international journal of applied and basic medical research
Language(s) - English
Resource type - Journals
eISSN - 2248-9606
pISSN - 2229-516X
DOI - 10.4103/2229-516x.81975
Subject(s) - medicine , vital capacity , asthma , pulmonary function testing , spirometry , receiver operating characteristic , technician , airway obstruction , cardiology , airway , physical therapy , lung function , surgery , lung , diffusing capacity , electrical engineering , engineering
In patients with advanced obstructive ventilatory disorders, expiration may last for a relatively long time until the end-of-test standards for forced vital capacity (FVC) are satisfied. This may be difficult for both the patient and the technician. The Forced expiratory volume in 3 seconds (FEV3) and Forced expiratory volume in 6 seconds (FEV6) maneuvers are simple, undemanding and easier to perform when compared with FVC; however, their reliability to be used as alternatives for FVC is controversial.