Asthma Guideline and Recommendation

Recommendation and guidelines

The guidelines of the American Thoracic Society (ATS) recommend FeNO measurement for diagnosis, therapy management, and monitoring of asthma patients.1

The NICE Clinical Guideline on Asthma recommends including FeNO measurement in the diagnosis algorithm in order to improve diagnostic quality, and considers the FeNO result to be an important parameter for long-term asthma management. FeNO measurement can also help to increase cost effectiveness.

Recommendation of the National Institute for Health and Care Excellence (NICE)

“Offer a FeNO test to adults and young people older than 16 if a diagnosis of asthma is being considered.”

“Consider FeNO measurement as an option to support asthma management in people who are symptomatic despite using inhaled corticosteroids.”2

The German Guidelines for Diagnosis and Treatment of Asthma Patients also recommend using the FeNO value as an additional marker for confirming the asthma diagnosis.3

1 Dweik et al. Am J Respir Crit Care Med 2011;184:602-15

2 NICE: Guideline Asthma - diagnosis and monitoring (November 2017,

3 NVL Asthma, 3. Auflage, Version 1 (September 2018,