challenge

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Related to bronchial challenge: Bronchial Provocation Test

challenge

1. US an assertion that a person is not entitled to vote or that a vote is invalid
2. Law a formal objection to a person selected to serve on a jury (challenge to the polls) or to the whole body of jurors (challenge to the array)

challenge

[′chal·ənj]
(communications)
To cause an interrogator to transmit a signal which puts a transponder into operation.
(immunology)
Administration of an antigen to ascertain state of immunity.
References in periodicals archive ?
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.
Investigation of cough Clinical investigations Indication Chest X-ray (CXR) All chronic cough or if suspect pneumonia/cancer Sputum M, C and S or acid-fast If purulent sputum produced bacilli staining and TB culture Pulmonary function tests (pre-and If suspect asthma or chronic post-bronchodilator spirometry, obstructive pulmonary disease serial peak flows) (COPD) Bronchial challenge tests If suspect asthma (metacholine, exercise) Gastrointestinal tests If suspect GORD (24-h oesophageal pH) Bronchoscopy If suspect cancer, foreign body or sputum -ve TB High-resolution computed If suspect bronchiectasis or ILD tomography (HRCT) Electrocardiogram (ECG) and If suspect cardiac disease echocardiography
1] and PEF according to time were performed during the 8 hr following allergen bronchial challenge for each of the 24 exposures.
Chief among these is bronchial challenge testing, a topic covered well and in sufficient detail to guide a lab in establishing this additional testing protocol if they are not already doing it.
2]-agonist as rescue therapy, to have at least 10% diurnal variation in their morning and evening peak expiratory flow (PEF) rates, and to be responsive to adenosine monophosphate (AMP) bronchial challenge testing.