FEV1


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FEV1

forced expiratory volume in 1 sec.

Forced expiratory volume (FEV1)

The maximum amount of air expired in one second.
References in periodicals archive ?
Lung Function: After instruction and a practice attempt, each subject performed a minimum of 3 forced expiratory maneuvers to provide estimates of forced vital capacity (FVC) and FEV1. FVC is the maximum volume of air expired during forced expiration and is primarily an indicator of lung volume (Enright et al., 1991).
While "it's not some huge effect," London says, "at the borderline [of healthy lung function], losing 4 percent of your FEV1 could be a problem"
FEV1 values (mean[+ or -]SDs) significantly improved in both the ASHMI group (64.9[+ or -]3.6 to 84.2[+ or -]5.0; p<0.001) and the prednisone group (65.2[+ or -]3.7 to 88.4[+ or -]5.4; p<0.001).
Table-III: Comparison of FVC Pred, FEV1 Pred and FEV1/FVC with smoking status of Never Smoker, Ex-Smoker and Current Smoker using ANNOVA.
[5] concluded that there are no significant differences in FEV1, FVC, and FEF 25-75% between the obese and non-obese adult females.
Forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC) were calculated.
where Y is the score of the questionnaire; x1 is smoking habit; x2 is the FVC value; x3 is the FEV1 value; x4 is the PEF value; x5 is exacerbation frequency; and a, b, c, d, e, and f are variable regression values.
FEV1 (L)###2.017+-0.723###0.736+-0.152###0.673+-0.231###0.735+-0.153###***
In our study, we found that the values for FVC and FEV1 were significantly lower in recently diagnosed hypothyroid group (Group-1) as compared to treated hypothyroid group (Group-2) and euthyroid group (Group-3), but the same parameters were not significantly decreased between Group-2 and Group-3.
TUESDAY, July 9, 2019 (HealthDay News) -- Use of a threshold of airflow obstruction of forced expiratory volume in one second:forced vital capacity (FEV1:FVC) of 0.70 discriminates chronic obstructive pulmonary disease (COPD)-related hospitalization and mortality, according to a study published in the June 25 issue of the Journal of the American Medical Association.