What is nitric oxide monitoring / FeNO testing for asthma?
Nitric oxide monitoring for asthma is a breathing test that assesses asthmatic inflammation in the airway. Asthma symptoms occur when the tissues of the lungs become inflamed and the muscles in the airway contract, prompting difficulty breathing. One measurable marker of inflammation caused by asthma is an increased level of nitric oxide (NO) in the breath.
Asthma involves multiple clinical mediators that induce inflammation within the bronchial airways. Nitric oxide is a gas that is released from inflamed lung tissue as an end-product of this inflammatory cascade. The fractional exhaled nitric oxide (FeNO) concentration is a very sensitive marker to identify and quantify the severity of asthma activity. Nitric oxide monitoring is also known as a FeNO test.
Since many health conditions can show symptoms similar to those seen in asthma, such as a chronic cough, chronic obstructive pulmonary disease (COPD), and bronchitis, a FeNO test enables Dr. Marc Bowen to quickly identify whether inflammation is present and whether asthma might be the underlying source of your symptoms. Our NYC pulmonology practice is equipped with a nitric oxide monitoring device so patients can be tested from the comfort and convenience of our office. If you’re suffering from asthma symptoms, schedule an appointment with Dr. Bowen on Zocdoc or call 212.480.4062 for an evaluation. Appointments will be confirmed by office staff.
How does a FeNO test for asthma work?
Nitric oxide monitoring involves testing the levels of exhaled nitric oxide (FeNO) to evaluate the degree of airway inflammation. In order to perform a nitric oxide test test, patients will breathe into a handheld mouthpiece that’s connected to a specialized device. From the exhaled breath, the device will be able to accurately detect NO levels, which allows Dr. Bowen to make a diagnosis or adjust asthma treatment accordingly.
What are the advantages of nitric oxide monitoring for asthma?
- Performed in-office
- Noninvasive test
- Delivers prompt, accurate results
- Can help identify airway inflammation and support a diagnosis of asthma when other objective evidence is lacking (i.e. patients with non-specific respiratory symptoms)
- Accurately predicts the likelihood of anti-inflammatory/steroid treatment responsiveness
- Allows a doctor to monitor asthmatic inflammation and adjust therapy for patients with diagnosed asthma
What can I expect after undergoing FeNO testing for asthma?
After undergoing nitric oxide monitoring, Dr. Bowen will be able to interpret the data provided by your FeNO test and make an accurate diagnosis and treatment decision. Alternatively, if asthma has already been diagnosed, Dr. Bowen will be able to use the test results to make adjustments to your existing asthma treatment.
“Dr. Bowen is very thorough and attentive. He truly cares about your well being. He is very detail oriented and makes certain that you understand your diagnosis and treatment plan.” – Toni S.