Chapter 1 - What is FeNO?

fractional exhaled nitric oxide or Fino

for short is the small level of nitric

oxide that your body breathes out which

can be measured to aid in management and

diagnosis of asthma your body produces

nitric oxide or enno naturally to combat

inflammation and airway inflammation is

a central process in asthma and other

lung diseases

therefore Fino can be used as a

non-invasive biomarker of airway

inflammation to help differentiate

between allergic and non allergic asthma

as well as between asthma and other

respiratory conditions