Inspiratory flow-volume curve evaluation for detecting upper airway disease.
The inspiratory flow-volume curve: The neglected child of pulmonary diagnostics [editorial].
The PEF is obtained from flow-volume curve data, and should be reported.
The maximal expiratory flow-volume curve. Normal standards, variability and effects of age.
(4.) Hyatt RE, Black LF, The flow-volume curve
. A current perspective, Am Rev Respir Dis 1973;107:191-9
The flow-volume curve
showed mild peripheral airway obstruction.
Tests were considered technically unacceptable for interpretation if forced expiratory volume in one second (FE[V.sub.1]) was less than 85% of the predicted value, and at least one of the following was seen on the flow-volume curve
: cough, delayed start, poor initial blow, failure to reach plateau (incomplete effort), variable effort, and failure to have reproducible effort if best effort had borderline FE[V.sub.1] (75% to 85%).
Changes in the normal maximal expiratory flow-volume curve
with growth and aging.
Calculated as a percentage and graphed as a time-volume curve or a flow-volume curve
Expiratory flow-volume curves
were recorded by a spirometer with a pneumotachograph sensor (Model ST90, Fukuda Sangyo Co.
However, Mallory did not have a direct, automated way to monitor flow-volume curves