INHALATION PROVOCATION TEST Meaning and
Definition
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An inhalation provocation test is a diagnostic procedure used in pulmonary medicine to evaluate and assess respiratory function. It is primarily conducted to determine the presence of airway hyperresponsiveness or bronchial hyperreactivity in individuals suspected of having asthma or other respiratory conditions.
During an inhalation provocation test, the patient is exposed to a specific substance or allergen, such as histamine, methacholine, or exercise-induced stimuli, in order to provoke a reaction in their airways. The substances used in the test are known to cause constriction or narrowing of the airways in individuals who are hyperresponsive, resulting in symptoms similar to those experienced during an asthma attack.
The procedure typically involves the patient inhaling gradually increasing concentrations of the substance through a nebulizer or a spirometer, while their lung function is closely monitored. The patient's respiratory parameters, including lung function, breathing patterns, and any symptoms experienced, are carefully observed and recorded. This allows healthcare professionals to assess the patient's airway response, determining the degree of airway reactivity or sensitivity present.
Inhalation provocation tests are valuable in aiding the diagnosis and management of respiratory conditions, particularly asthma. They provide quantitative measurements of airway response and help to identify triggers or allergens that may induce symptoms. The results obtained from the test can guide healthcare professionals in determining appropriate treatment plans, including medication choices, and can assist in monitoring disease progression or response to therapy.
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