Fractional exhaled nitric oxide and the response to prednisolone for asthma attacks in patients treated with anti-IL5/5Rα therapy: a prospective observational study.
Howell I., Mahdi M., Mahmood HR., Bermejo-Sanchez L., Borg C., Ramakrishnan S., Melhorn J., Lavoie G., Petousi N., Hinks TSC., Bafadhel M., Pavord ID.
FENO testing at attack can identify the patients on anti-IL5/IL5Rα biologics who have the most lung function and symptom benefits from prednisolone https://bit.ly/3KhMB68