Multiple Choice
Why is the exhaled fraction of NO (FENO) useful in the diagnosis and management of asthma?
A) It is a chemical mediator exclusive to lymphocytes and helps diagnosis asthma.
B) Its concentration increasing in the presence of airway inflammation.
C) It helps identify the lymphophilic asthma phenotype.
D) Can easily be measured with a standard end-tidal CO2 detector.
Correct Answer:

Verified
Correct Answer:
Verified
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