Nasal NO measurements

What is FE_NO?
What do NO levels test?
FE_NO as a diagnostic tool
FE_NO as a monitoring system
Interpretation of FE_NO values
- Normal FE_NO levels
- Above normal FE_NO levels
- High FE_NO levels
- Low FE_NO levels
  - Nasal NO measurement
- Factors affecting FE_NO levels
FE_NO in clinical guidelines
Motivating patients

Nasal NO measurements can be used in conjunction with other laboratory and clinical assessments to diagnose primary ciliary dyskinesia (PCD) and cystic fibrosis. PCD patients have been shown to have lower nasal NO values (200 ppb) than healthy individuals (1000 ppb). [Narang 2002]