TY - JOUR AU - Bohadana, Abraham B. AU - Rokach, Ariel AU - Wild, Pascal AU - Izbicki, Gabriel PY - 2018 TI - Asthma-like symptoms induced by the methacholine challenge test: do they predict a negative-to-positive switch in the test result?—case report JF - Journal of Thoracic Disease; Vol 10, No 10 (October 26, 2018): Journal of Thoracic Disease Y2 - 2018 KW - N2 - The methacholine challenge test (MCT) is primarily indicated to help determine if current respiratory symptoms may be due to asthma or not (1,2). A positive test is generally defined as the provocative concentration (or dose) of methacholine causing a 20% fall in forced expiratory volume in one second (PC20FEV1) without consideration of the symptoms that may occur during the test, such as dyspnoea, cough, chest tightness and wheezing (2). UR - https://jtd.amegroups.org/article/view/24306