obtained via diagnostic tool Respiratory System Measurement Bronchodilator Responsiveness Suggest update to description The improvement of forced expiratory volume in 1 second (FEV1) after inhalation of beta2-agonists and is typically measured as the change in airflow after the administration of short-acting beta2-adrenergic agonists (SABAs). BDR Bauer S, Park HN, Seo HS, et al. Assessment of bronchodilator responsiveness following methacholine-induced bronchoconstriction in children with asthma. Allergy Asthma Immunol Res. 2011;3(4):245-50. Suggest that the description be updated in PhenX (https://www.phenxtoolkit.org/protocols/view/90301) Bronchodilator Responsiveness Test