The guidelines [1] on using methacholine challenge testing (MCCT) to evaluate for airway hyperresponsiveness (AHR), published in 2000, provided a figure that allowed clinicians to calculate posttest ...

ASTHMA can be defined as a disease of the bronchi producing diffuse, reversible bronchial obstruction. The bronchial tree of patients with asthma is hypersensitive to the effects of dust, cold air, ...