I'm a bit confused about my recent test results and could use some advice. My spirometry report came back normal, but my FeNO level is around 35. I'm not sure what this could mean. Could it be a sign of asthma or allergies, or maybe something else? Also, my SPO2 level is consistently at 98. Would love to get a better understanding of all this.

Answered by 1 Apollo Doctors

Dr Shubham Chauhan

General Practitioner

MBBS
4+ Yrs

Consult Now

this test indicates the amount of nitric oxide exhaled, which is used to diagnose asthma. since your feno value is increased it might be asthma, but not a confirmatory test

Dr. Shubham Suggests...

Consult a Pulmonology Respiratory Medicine Specialist

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Answered 04/07/2025

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.