FeNO Testing: A Game-Changer for Asthma Care
Asthma diagnosis just got a major upgrade! The FeNO test, a simple exhaled breath analysis, is now recommended as the go-to tool for asthma diagnosis by leading health organizations. But here's where it gets controversial: it's not just for confirming asthma anymore!
Let's dive into why this test is so important and how it's revolutionizing asthma care.
The Nitric Oxide Connection
Nitric oxide (NO) is a natural gas we exhale, and in asthma patients, its levels can tell a story. When the airways are inflamed, as in asthma, NO levels rise, leading to higher FeNO readings. This makes the FeNO test an invaluable tool for assessing airway inflammation and guiding asthma diagnosis.
Occupational Asthma: Don't Overlook Work-Related Triggers
The guidelines emphasize the importance of considering occupational triggers, especially in adult-onset asthma or poorly controlled cases. Clinicians are encouraged to ask patients about their symptoms on and off work days. If symptoms worsen at work, a referral to a specialist is recommended.
Asthma in Children: A Unique Challenge
Diagnosing asthma in children aged 5-16 follows a similar approach to adults. The FeNO test is the first and only recommended test for children, making it crucial to have FeNO devices in primary care settings. If the FeNO result is inconclusive, further tests like bronchodilator reversibility (BDR) with spirometry or a peak flow diary are suggested. Skin prick tests and blood eosinophil tests are considered last resorts due to their limitations and invasiveness, respectively.
Incorporating FeNO Testing in Practice
Some Primary Care Networks (PCNs) offer same-day FeNO testing appointments, with the entire nursing team trained to perform the test and code results accurately. However, this model may not be feasible everywhere. An alternative is to train all clinicians to perform FeNO testing themselves, allowing for instant results and immediate treatment.
Asthma Diagnosis in Children Under 5
Healthcare professionals previously advised against diagnosing asthma in children under 5. The new guidelines acknowledge the challenges and recommend using clinical judgment to treat and review regularly if asthma is suspected. Once the child reaches 5, an attempt to test for asthma is made, but it's unclear if treatment should stop beforehand. If the test is unsuccessful, treatment continues with regular reviews. Testing is re-attempted every 6-12 months, and a referral to a specialist is recommended if the child doesn't respond to treatment.
Specialist Referrals for Preschoolers
The guidelines also recommend referring any preschool child admitted to the hospital or who has had two or more emergency care visits for respiratory issues in 12 months to a specialist.
The Future of Asthma Treatment
With a clearer understanding of FeNO testing, the focus now shifts to how these new guidelines will reshape asthma treatment and long-term management. It's an exciting time for asthma care, and we can't wait to see the impact of these advancements!
About Bedfont® Scientific Ltd
Bedfont® Scientific has been a leader in exhaled breath and gas monitoring instruments since 1976. Their range includes the Medi-Gas Check for medical gas pipeline testing, carbon monoxide (CO) monitors like the Smokerlyzer® and ToxCO®, and the NObreath® FeNO monitor for accurate airway inflammation analysis. The Gastrolyzer® range aids in detecting gastrointestinal disorders and food intolerances. Breath analysis is the new frontier in medical diagnostics, offering quick and non-invasive insights.
