bronchial challenge test


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Related to bronchial challenge test: methacholine

bronchial

 [brong´ke-al]
pertaining to or affecting one or more bronchi.
bronchial challenge test a pulmonary function test in which an aerosol such as methacholine, histamine, or an allergen is administered to provoke bronchospasm; used in diagnosis of asthma.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

bronchial challenge test

Any of a group of functional tests for assessing asthma, in which a nebulised agent—e.g., histamine, methacholine—is sprayed on the bronchial mucosa that evokes bronchoconstriction in asthmatics, which is detected by spirometry; BCT is used to establish a baseline pulmonary functional status.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
In order to perform the bronchial challenge test, an inhalation device and capsules (Pharmaxis Ltd., Australia) containing dry powdered mannitol were used.
This indicates that "whenever possible, physicians should order objective tests, such as prebronchodilator and postbronchodilator spirometry, serial peak flow measurements, or bronchial challenge tests, to confirm asthma at the time of initial diagnosis," the investigators said.
Bronchial challenge tests were performed with 4.5% sodium chloride according to the ISAAC protocol (Riedler et al.
In a 2004 crossover study, Kimata exposed 20 people with dust mite-allergic bronchial asthma and 20 healthy participants to methacholine in a baseline bronchial challenge test. Two weeks later, each participant was randomly assigned to watch a humorous film or a nonhumorous one.