Exhaled nitric oxide is associated with severity of pediatric acute asthma exacerbations

Abstract

Upper respiratory symptoms .21 Yes (n 1⁄4 156) 36 (20-56) Fractional excretion of nitric oxide is associated with acute pediatric asthma exacerbation severity as measured by % predicted FEV1 and is greater in African American patients in comparison with white pediatric patients during exacerbations. Knowledge of these associations might inform the use of fractional excretion of nitric oxide before and during acute asthma exacerbations in children. No (n 1⁄4 280) 41 (21-68)