Asthma Clinical Trial
Official title:
CLOUD Study: Connect Lung Outcomes With Bronchodilator Use
To determine the accuracy of the Respimetrix flow-volume monitoring device in measuring the patient's inspiratory capacity as compared to gold-standard measurements of inspiratory capacity on pulmonary function testing. Accuracy will be assessed before and after (A) pulmonary function testing and before and after (B) the administration of an inhaled bronchodilator medication.
1. Specific Aim #1: Compare the performance of the flow-volume test device to standard pulmonary function measurements. The investigators hypothesize that measurements of inspiratory capacity with the Respimetrix test device will: A. Accurately measure the inspiratory capacity as assessed on standard pulmonary function tests, and will B. Correlate with other measures of pulmonary function including spirometry (vital capacity, forced expiratory volume in 1 second) and lung volumes (total lung capacity, functional residual capacity and residual volume). 2. Specific Aim #2: Examine the ability of the flow-volume test device to track changes in standard pulmonary function measurements after the administration of an inhaled bronchodilator. The investigators hypothesize that the Respimetrix test device will: A. Accurately measure changes in inspiratory capacity in response to a standard dose of a short acting inhaled beta-agonist (4 puffs albuterol), B. Correlate with immediate changes in pulmonary function parameters including spirometry (vital capacity, forced expiratory volume in 1 second) and lung volumes (total lung capacity, functional residual capacity and residual volume). ;
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