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FeNO Asthma Test London at Tower Bridge Hospital, East London
Respiratory

FeNO Asthma Test

A FeNO test is a simple breath test that measures inflammation in your airways in under a minute — a valuable, objective aid to diagnosing asthma and checking whether your treatment is working.

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Test
Simple breath test
Time
Under a minute
For
Asthma diagnosis & control

If your child is seriously unwell — call 999 or take them to A&E. We're a private outpatient service, not an emergency service. The Royal London Hospital (5 minutes' walk) has a paediatric A&E.

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What it measures

Inflammation you can measure

FeNO stands for Fractional exhaled Nitric Oxide. When the airways are inflamed — as in allergic asthma — nitric oxide levels in your breath rise. Measuring it gives an objective marker that a simple examination can’t.

  • Helps confirm a diagnosis of asthma, alongside other tests
  • Shows whether airway inflammation is well controlled
  • Helps guide and fine-tune inhaler treatment
  • Quick, non-invasive and radiation-free

How it works

One steady breath

You simply breathe out steadily into the device for around ten seconds, and the result appears immediately. We interpret it alongside your symptoms, history and, where useful, spirometry — see our respiratory clinic.

Part of proper asthma care

Objective, joined-up

FeNO is one part of a full assessment. We combine it with a careful history and lung-function testing to reach a clear diagnosis and plan, and we refer to a respiratory specialist if your asthma is difficult to control.

Good to know

Safe, joined-up care

GMC-registered clinicians, CQC-registered clinic

You’re seen by GMC-registered clinicians at our CQC-registered Whitechapel clinic. We keep clear, confidential records and, with your consent, share a summary with your NHS GP so your care stays joined up. A chaperone is available for any examination on request, at no charge.

You don’t need to be registered with us, and private care complements — it doesn’t replace — being registered with an NHS GP.

What we don’t do here

  • We are not an emergency service. For anything serious or life-threatening, call 999 or go to A&E. For urgent advice any time, NHS 111 is available 24/7.
  • We are an outpatient clinic and do not provide hospital admission or inpatient care.
  • Private care and screening complement, and do not replace, being registered with an NHS GP or national NHS screening programmes.

Fees

Clear, up-front pricing

Consultation and assessment fees are set out on our price list, and any tests or treatments are explained and priced clearly before you go ahead — no surprises. Some services are priced on enquiry; just ask the clinic team.

View the price list

Good to know

Common questions

What does a FeNO test involve?

Breathing out steadily into a small device for about ten seconds. The result is immediate — there are no needles or radiation.

Can it diagnose asthma on its own?

No single test diagnoses asthma. FeNO is a valuable objective marker that we combine with your symptoms and lung-function testing.

Is it useful if I already have asthma?

Yes — it helps show whether your airway inflammation is controlled and can guide adjustments to your inhalers.

Who should have a FeNO test?

Anyone with suspected asthma, or with asthma that’s hard to control, can benefit. We’ll advise if it’s useful for you.

Take control of your asthma

Book a FeNO test for an objective measure of your airway health.

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Insurance accepted
Bupa AXA Health Vitality Aviva Cigna + more — check yours
Trusted partners
CQCCare Quality Commission GMCGeneral Medical Council PabauPractice management & online booking TDLThe Doctors Laboratory
In an emergency, call 999. Tower Bridge Hospital London is not an emergency service. Your nearest A&E is The Royal London Hospital, Whitechapel Road E1 1FR — 5 minutes’ walk from our front door.

Related reading

Areas we serve

FeNO Asthma Test in London & East London — Whitechapel, the City & Canary Wharf

Our FeNO Asthma Test service at Whitechapel, E1 cares for patients from right across London and East London, the City and the Docklands — including Aldgate, Bethnal Green, Bow, Shoreditch, Canary Wharf, Stratford, Bermondsey and the surrounding areas. Same-day and walk-in appointments are available and you do not need a GP referral.

Easy to reach — minutes from the Royal London Hospital and Aldgate East, Whitechapel, Aldgate and Liverpool Street stations, and one stop from Canary Wharf on the Elizabeth line.

Looking for feno asthma test near me? If you are searching for a private feno asthma test near me, a doctor, clinic or specialist near me in East London, our Whitechapel practice is on your doorstep — walk-in and same-day appointments, no GP referral, and no long NHS waiting list.

Book a same-day appointment or call 020 7916 0029. See our transparent fees. Open 7 days a week, 9am–7pm. Private clinic on Whitechapel Road, London E1 — serving Tower Hamlets, Hackney, Newham, Islington, the City of London and Southwark.

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