This new guideline from NICE looks at measuring exhaled Nitric Oxide (eNO) in asthma. I have never heard of this, so I’ll just lay out the guidance and then give a bit more of an explanation as to what this is all about.
NICE recommendations
Measuring eNO is recommended as an option to aid diagnosis of asthma in both adults and children if:
- There is an intermediate possibility of them having asthma (helpfully defined as where the diagnosis is uncertain)
- It is done in combination with other diagnostic options (eg clinical judgment / spirometry / reversibility testing etc).