The Fractional Exhaled Nitric Oxide (FeNO) test is a diagnostic procedure that measures inflammation in the airways. It assesses the levels of nitric oxide gas in a person's breath, which can indicate airway inflammation, a common sign of asthma.
FeNO testing is crucial in diagnosing and managing asthma. It helps in understanding the inflammation level in the lungs, guiding treatment decisions. Patients with symptoms like coughing, wheezing, or shortness of breath, especially if triggered by allergies or exercise, may benefit from this test.
Patients may need to follow specific instructions, such as avoiding certain foods or medications before the test. During the test, they breathe into a mouthpiece that analyzes the nitric oxide levels in their breath.
FeNO testing aids in diagnosing asthma and determining its severity. Results are used to develop tailored treatment plans, which may include medications, lifestyle adjustments, or further testing.
This test provides accurate, non-invasive insights into airway inflammation, helping ensure effective management of asthma-related conditions.