FeNO Testing for Airway Inflammation in Houston, TX

Pulmonary Obesity & Sleep Specialists of Houston
📍 1800 West 26th Street #200, Houston, TX 77008
📞 (281) 652-5864

FeNO (Fractional Exhaled Nitric Oxide) testing is a non-invasive diagnostic tool used to measure inflammation in the airways—especially useful in diagnosing and managing asthma. At Pulmonary Obesity & Sleep Specialists of Houston, we use FeNO testing to provide fast, accurate insights into your respiratory health and optimize your treatment plan.

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This quick breath test measures the level of nitric oxide in your exhaled air, which serves as a biomarker for eosinophilic airway inflammation—a key characteristic of asthma. Elevated FeNO levels can indicate uncontrolled inflammation even when other tests appear normal, helping guide medication adjustments.

FeNO testing is especially valuable for patients who may not respond well to traditional asthma medications or those who are unsure if their symptoms are due to asthma, allergies, or another condition. The test is painless, takes only a few minutes, and provides immediate results right in our office.

By incorporating FeNO testing into your care plan, we can avoid over- or under-treatment and ensure inhaled corticosteroids are used appropriately. It also helps monitor your response to treatment over time, improving both symptom control and long-term outcomes.

If you have asthma or unexplained respiratory symptoms, schedule your FeNO test today by calling (281) 652-5864. It’s one of the most effective ways to pinpoint the cause of your breathing issues and tailor your care.