How you prepare

Check ahead of time to see whether nitric oxide testing is covered by your insurance.

Food and medications

To make sure test results are accurate, you will need to avoid the following for at least an hour before you take the test:

  • Eating and drinking

Other precautions

You will also need to avoid the following for about 24 hours before you take the test:

  • Exercise
  • Alcohol
  • Tobacco
  • Allergy shots