Cherechedza ndima iri pasi apa uye wozopindura mubvunzo wacho mumutauro mumwe chete sezvinotaurwa mundima yacho: Passage: The methacholine challenge involves the inhalation of increasing concentrations of a substance that causes airway narrowing in those predisposed. Kana zvisina kunaka zvinoreva kuti munhu haana chirwere cheasthma; kana zvakanaka, zvisinei, hazvisi zvechirwere ichi. Zvimwe zvinotsigira uchapupu zvinosanganisira: ≥20% musiyano wepamusoro wekufema kwekufema kwemazuva matatu pavhiki kwemavhiki maviri, ≥20% kuvandudzwa kwehuwandu hwekufema mushure mekurapwa ne salbutamol, inhaled corticosteroids kana prednisone, kana ≥20% kuderera kwehuwandu hwekufema mushure mekuratidzwa kune chinokonzera. Kuongorora kwepamusoro kwekufema kunoshanduka kupfuura spirometry, zvisinei, uye saka hazvikurudzirwi pakuongororwa kwemazuva ese. Inogona kuve inobatsira pakuzviongorora kwezuva nezuva kune avo vane chirwere chakakomba chekufema uye kuongorora kushanda kwemishonga yemishonga. Inogona zvakare kubatsira mukurapa kwakanyanya kwekufema kwemish
kutungamirira kurapwa mune avo vane acute exacerbations