2 doctors weighed in:

Are intermediate FeNO levels an accurate indicator of asthma in the absence of clinical signs?

2 doctors weighed in
Dr. Amrita Dosanjh
Pediatrics - Pulmonology
1 doctor agrees

In brief: Mgt

FeNO reflects activation of a type of cell associated with allergic lung disease.
It can be falsely elevated in some situations. If you have no symptoms, discussing why you had this test with your PCP is advised. If your doctor suspects that you have asthma, I would suggest having a lung function test performed.

In brief: Mgt

FeNO reflects activation of a type of cell associated with allergic lung disease.
It can be falsely elevated in some situations. If you have no symptoms, discussing why you had this test with your PCP is advised. If your doctor suspects that you have asthma, I would suggest having a lung function test performed.
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