bronchial challenge

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Related to bronchial challenge: Bronchial Provocation Test

challenge

[chal´enj]

1. to administer a chemical substance to a patient for observation of whether the normal physiological response occurs.

2. in immunology, to administer antigen to evoke an immunologic response in a previously sensitized individual.

3. the administration of such a substance in order to assess for a response; called also provocation.

bronchial challenge (inhalational challenge) bronchial challenge test.

bronchial challenge

Inhalation of antigens to detect allergic reactions; in a positive BC, the Pt's temperature and WBC count rise, and the FEV₁, and FVC fall within 4–12 hrs of inhalation

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References in periodicals archive ?

Allergen bronchial challenge. Each exposure to formaldehyde or air-only was immediately followed by an allergen inhalation challenge.

Effect of formaldehyde on asthmatic response to inhaled allergen challenge

Because a small number of subjects had an increase in [FEV.sub.1] during the bronchial challenge, a constant of 0.43 was added to all calculated DRS measurements, eliminating negative slopes prior to logarithmic transformation [8].

Persistence of atopic effects on airway calibre and bronchial responsiveness in older adults

Lung function and bronchial challenge. Lung function was determined using a pneumotachometer (Jaeger, Wurzburg, Germany).

The relationship between air pollution from heavy traffic and allergic sensitization, bronchial hyperresponsiveness, and respiratory symptoms in Dutch schoolchildren

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.

Shorts

The subjects were required to have persistent asthma symptoms requiring 2 puffs per day of a short-acting [[Beta].sub.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.

In patients with asthma that is not well controlled with inhaled steroids, does salmeterol (Serevent) or montelukast (Singulair) offer better symptom relief?

Spirometric tests and bronchial challenges were performed in the Respiratory Laboratory.

Urinary cotinine and exposure to parental smoking in a population of children with asthma