Analytical, Diagnostic and Therapeutic Techniques, and Equipment

Fractional Exhaled Nitric Oxide Testing

Test to measure the levels of NITRIC OXIDE (an ENDOTHELIUM-DEPENDENT RELAXING FACTOR) in the exhaled air. FeNO test is used to determine levels of inflammation in the pulmonary ENDOTHELIUM often associated with endothelium associated diseases, e.g., ASTHMA.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Test to measure the levels of NITRIC OXIDE (an ENDOTHELIUM-DEPENDENT RELAXING FACTOR) in the exhaled air. FeNO test is used to determine levels of inflammation in the pulmonary ENDOTHELIUM often associated with endothelium associated diseases, e.g., ASTHMA.

MeSH Record

Classification

Broader headings

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See Also

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Synonyms

5 entry terms
  • Exhaled Nitric Oxide Test
  • FeNO Test
  • FeNO Tests
  • Test, FeNO
  • Fractional Exhaled Nitric Oxide

MeSH Record

Aspects Covered

14 allowable subheadings

Indexed with the subheadings adverse effects, classification, economics, ethics, history, instrumentation, methods, mortality, nursing, psychology, standards, statistics & numerical data, trends, veterinary.

MeSH Record

History Note

2022

MeSH Hierarchy

Tree Number

  1. E01w.370.100w.500

AMA Style

References

  1. National Library of Medicine. Fractional Exhaled Nitric Oxide Testing. Medical Subject Headings (MeSH). 2026. Unique ID D000089142. http://id.nlm.nih.gov/mesh/2026/D000089142
  2. Fractional Exhaled Nitric Oxide Testing. In: Wikidata. https://www.wikidata.org/wiki/Q112074376