What we are studying
The purpose of this research study is to determine whether exhaled nitric oxide (FeNO) goes up during an acute exacerbation of COPD and whether the level of exhaled nitric oxide returns to normal in the weeks after an exacerbation.
Fractional Exhaled Nitric Oxide (FeNO) is a naturally occurring gas made in your lungs that can be measured and provides information about the level of inflammation (redness, swelling, and irritation) in your lungs. FeNO is often higher in people with asthma or other types of breathing problems. FeNO is measured with a medical device called the NIOX MINO®. The NIOX MINO® device has been cleared by the Food and Drug Administration (FDA) for use in children and adults age 7 and older to measure Fractional Exhaled Nitric Oxide (FeNO) in human breath.
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