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Fraction of Exhaled Nitric Oxide (FeNO)

A test that measures the level of nitric oxide gas in an exhaled sample of your breathe

Image by Nataliia Kvitovska

Indications for Testing:
NIOX VERO Airway Inflammation Monitor NIOX VERO® measures Nitric Oxide (NO) in the breath. Nitric Oxide is frequently elevated in some airway inflammatory processes, such as asthma. The fractional NO concentration in expired breath (FeNO), can be measured by NIOX VERO. This test will be used in conjunction with other tests and to find the cause of your symptoms.

What to expect during this procedure:

The measurement of FeNO by NIOX VERO is a quantitative, non-invasive, simple and safe method to measure the FeNO concentration. The procedure consists of a short breathing test guided by a Respiratory Therapist.

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     Test Preparation:

  • Since this procedure is not covered by Alberta Health Services, you would be
    responsible for the cost of the test in the amount of $40.00 per test CASH ONLY

  • Please do not eat or drink (except for water) for 1 hour prior to the test.

  • Please do not smoke for 1 hour prior to the test

  • Please avoid exercise for 1 hour prior to the test

  • If you are currently taking any asthmatic medications, please contact us to see if
    any medications should be withheld prior to testing.
    Call our Office at (403) 475-9766 if you:
    • Develop a lung infection, a cold, or the flu. If you have had any of these, you may
    need to have the test rescheduled.
    • Need to change your appointment.
    • Have any questions or concerns about the test procedure

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