Cardio Respiratory Department - LUHFT wide
Your Consultant / Doctor has advised you to have a (FeNO) test
What is FeNO test?
Patients with allergic airway inflammation generally have higher than normal levels of nitric oxide (NO) in their exhaled breath. By measuring the concentration of NO in exhaled breath (fractional exhaled nitric oxide or FeNO), clinicians can identify inflammation in the lungs.
What are the benefits of having a FeNO test?
The intended benefit of having this test is to will provide detailed information about how your lungs are working and give us information about the cause of your illness, as well as how to manage it.
What are the risks of having a FeNO test?
This is a very safe test. The test requires you to take a full inspiration then slowly exhale the breath into a sensor that will measure the air you exhale. This is not a forced effort.
Are there any alternative treatments available?
To obtain the information required from this test there are no alternative treatments available.
What will happen if I decide not to have treatment?
Your level of service will not be affected if you decide not to have the test. However, your doctor/consultant will not be able to obtain the necessary information that would have been gathered from performing the test.
Getting ready for your test
- Do not eat more than a light snack within two hours of the test
- Do not eat large Green leafy Veg within two hours of the test.
- Do not smoke for 24 hours before your test.
- Do not drink alcohol for at least six hours before the test.
- Avoid vigorous exercise for at least 30 minutes before the test
Do not stop taking any of your medications unless your doctor has told you to do so. However some medications may affect the results of the testing. Please bring all medications/information regarding your medications with you. With specific importance of medication for your breathing, forms of inflammation and Rhinitis/nasal medications.
Further Appointments
There will be no further appointments for this test. However, your results will be discussed at your next clinic appointment.
Feedback
Your feedback is important to us and helps us influence care in the future.
Following your discharge from hospital or attendance at your outpatient appointment you will receive a text asking if you would recommend our service to others. Please take the time to text back, you will not be charged for the text and can opt out at any point. Your co-operation is greatly appreciated.
Further Information:
Cardio Respiratory Department
Royal Liverpool Hospital
Tel: 0151 706 2710
Textphone Number: 08001 0151 706 2710
Aintree Hospital
Tel: 0151 529 2710
Textphone Number: 08001 0151 529 2710
Author: Cardio Respiratory Department
Review date: January 2028
PI 2064 V2