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Bronchodilator Responsiveness Testing Copy TEST COURSE Jan 2023
Bronchodilator Responsiveness Testing
Definition
Spirometry performed before and after the administration of a bronchodilator.
“Bronchodilator responsiveness testing is a determination of the degree of improvement of airflow in response to bronchodilator administration as measured by changes in FEV1 and FVC. It is commonly undertaken as part of spirometry testing.”(1)
Aim
To assess possible relaxation of bronchial muscle resulting in expansion of the bronchial air passages i.e. determine evidence of reversible airflow limitation.
Indications
Indications for bronchodilator testing
To diagnose and / or follow-up of asthmaTo differentiate between asthma and COPD
Gauge subject prognosis
Guide treatment decisions
To determine best lung function
Contraindications to bronchodilator responsiveness testing
The contraindications to bronchodilator responsiveness testing apply to the risks involved with the administration of a beta-agonists and the risk of a single administration for diagnostic purposes is small.
