What are indications for fractional exhaled nitric oxide (FENO) measurement?

Updated: May 14, 2020
  • Author: Kevin McCarthy, RPFT; Chief Editor: Nader Kamangar, MD, FACP, FCCP, FCCM  more...
  • Print
Answer

Answer

Common reasons for obtaining a FENO test include the following [21, 22] :

  • Assessment of cough, wheezing, and dyspnea

  • Identifying eosinophilic asthma phenotype

  • Assessing the potential response to anti-inflammatory agents, notably inhaled corticosteroids (ICS)

  • Establish a baseline FENO during a period of clinical stability for subsequent monitoring of chronic persistent asthma

  • To guide changes in anti-inflammatory medications in a step-wise manner

  • To assist in the evaluation of adherence to anti-inflammatory medications

  • To assess whether airway inflammation is contributing to poor asthma control, particularly in the presence of other contributors (eg, rhinosinusitis, anxiety, gastroesophageal reflux, obesity, continued allergen exposure)


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!