FeNO test in Arad

What is feno test?

The FeNO test measures fractional exhaled nitric oxide, a marker that can provide information about type 2 inflammation in the airways.

When may it be recommended?

It may be recommended to support asthma diagnosis, monitor airway inflammation, and assess treatment response. The result helps the clinician personalise management and may contribute to reducing the risk of exacerbations.

What happens during the service?

You breathe out steadily into a device following the staff's instructions. The measurement is quick, non-invasive, and easy to perform, and the result is interpreted alongside symptoms, treatment, and other investigations.

How should you prepare?

1. Follow the instructions provided when booking regarding food, drink, smoking, or exercise before the test.
2. Bring a list of medication and inhalers, including doses and administration times.
3. Do not stop inhaled corticosteroids or other medication on your own.
4. Tell the clinician about a recent respiratory infection, active allergies, or smoking because these may affect the result.

What limitations and precautions matter?

• FeNO alone does not confirm or exclude asthma; it complements clinical history, examination, and lung-function testing.
• Inhaled corticosteroid treatment, smoking, and other factors can alter the measured value.
• Interpretation depends on the clinical context and change over time; treatment should not be changed without clinical advice.