vital capacity


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vital capacity

[′vīd·əl kə′pas·əd·ē]
(physiology)
The volume of air that can be forcibly expelled from the lungs after the deepest inspiration.
References in periodicals archive ?
Comparison of vital capacity induction with sevoflurane to intravenous induction with propofol for adult ambulatory anesthesia; 1999.
During a forced vital capacity maneuver, a normal loop appears, until toward the end of the loop, when an obstructive phase seems to tack on to end of the expiratory phase.
The curving line that starts at the bottom left of the graph and goes vertically first, then shifts to the right and becomes horizontal represents the patient's forced vital capacity maneuver.
Forced vital capacity and maximum phonation time's median according to the percentile classification of abdominal circumference from evaluated children Abdominal Circumference Percentile Variables [less than or equal to] 25 md >25 e <75 md (1[degrees]/3[degrees]q) (1[degrees]/3[degrees]q) FVC (l) 1,92 (1,71-2,16) (ab) 2.
Subject's age, place of work, past history of underground work, smoking habit and length of exposure had significant effect on forced vital capacity outcome independently.
he researchers also saw an improvement in forced vital capacity scores by 9.
Vital capacity was measured every 4 weeks, and lowest oxygen saturation by pulse oximetry (Sp[O.
A total of 1,291 initially non-demented women aged 44-66 without cardiopulmonary disease had measurements of peak expiratory flow (PEF) performed in 1974, and both forced vital capacity (FVC) and forced expiratory volume in one second (FE[V.
1]/forced vital capacity (FVC)--may be helpful for long-term tracking of asthma severity over time, said Dr.
A secondary endpoint of the trial was absolute mean change in forced vital capacity (FVC), a measure of lung function.
4] The pattern of pulmonary function is found to worsen with the degree of obesity moving from a restrictive pattern in mild to moderate obesity with both forced expired volume in 1 second (FEV1) and forced vital capacity (FVC) reduced and FEV1/FVC ratio being normal to an obstructive pattern in severe and morbid obesity with significant decrease in FEV1 as against FVC and FEV1/FVC ratio being decreased.
The primary endpoint of the Phase three trial is the effect of neoGAA on respiratory muscle strength as measured by percent predicted forced vital capacity in the upright position.