• Breathe Clinic, G.S. road, near Ganesh Mandir Indoor Stadium, Khanapara, Guwahati
    • Find Doctors
Call Now : +91 8822153356

FeNO Test for Asthma in Guwahati

FeNO Test for Asthma in Guwahati

A FeNO test, short for Fractional Exhaled Nitric Oxide test, is a simple breath test that checks for inflammation (swelling and irritation) inside your airways. It works by measuring the amount of nitric oxide gas in the air you breathe out — when your airways are inflamed, as they often are in asthma, the level of this gas goes up.

In plain words: you breathe out slowly into a small handheld device, and within a minute, it gives a number that tells your doctor how inflamed your airways are. There are no needles, no machines wrapped around you, and no waiting days for results.

At Breathe Superspeciality Clinic, Khanapara, Guwahati, the FeNO test is performed and personally reviewed by Dr. Smitakshi Medhi (MD, Pulmonary Medicine), helping you get a faster, clearer answer about whether your asthma is being triggered by inflammation that needs treatment.

Guwahati's dust, vehicle pollution, seasonal pollen, and humidity changes are common triggers for airway inflammation. Many people in the city live with a cough, chest tightness, or breathlessness for months, assuming it is "just allergies" or "just the weather," when it may actually be poorly controlled asthma.

A FeNO test is especially useful because it tells your doctor why you might be breathless or coughing — specifically, whether airway inflammation is the cause. This helps in:

  • Confirming whether your symptoms are due to asthma
  • Checking if your current inhalers or medicines are actually controlling the inflammation
  • Deciding if your inhaler dose needs to be increased, decreased, or changed
  • Monitoring children and adults with asthma over time, without repeated invasive tests
  • Telling the difference between asthma and other causes of cough or breathlessness, such as a simple cold or acidity-related cough

Your pulmonologist may recommend a FeNO test if you:

  • Have a long-standing cough, wheeze, or tightness in the chest
  • Have been diagnosed with asthma and want to check if your treatment is working well
  • Use an inhaler but still feel breathless often
  • Are a child with recurring cough or wheeze, where other tests may be harder to perform
  • Have allergic rhinitis (frequent sneezing, blocked nose) along with breathing symptoms
  • Need a second opinion on whether your symptoms are truly asthma or something else

The test is quick, painless, and usually takes about 5 - 10 minutes from start to finish.

  1. You will be asked about your symptoms and any inhalers or medicines you are currently using.
  2. You will be given a clean mouthpiece attached to the FeNO device.
  3. You will be asked to breathe in fully, then breathe out slowly and steadily into the device for about 10 seconds, at a steady pace guided by the machine.
  4. The device displays a reading immediately, which Dr. Medhi will explain to you in simple terms the same day.
  5. Based on the result, she will advise whether your current treatment needs any change.

There is no discomfort, no recovery time, and you can resume your normal activities right after the test.

To get an accurate reading, we recommend:

  • Avoid eating a heavy meal right before the test
  • Avoid smoking for at least 1 hour before the test
  • Avoid strenuous exercise just before the test
  • Let our staff know if you have used your inhaler shortly before coming in, as this can affect the reading
  • Carry your previous prescriptions or inhaler details, if any

Our team will guide you through any test-specific instructions when you book your appointment.

People often ask whether they need a FeNO test, a PFT (spirometry), or both. In simple terms:

  • A PFT / spirometry measures how much air you can breathe in and out, and how fast — it tells you about airflow and lung capacity.
  • A FeNO test measures airway inflammation — it tells you whether your airways are irritated and swollen.

Both tests look at different things, and for asthma, your pulmonologist may recommend both together for a complete picture. Dr. Medhi will guide you on which test, or combination of tests, is right for your specific symptoms.

It checks for swelling and irritation inside your breathing tubes (airways). This swelling is common in asthma and can cause cough, wheeze, or breathlessness.

No. You only need to breathe out slowly into a small device. There are no needles and nothing touches your skin.

The actual breathing part takes about 10 seconds, and the whole visit, including explanation of results, usually takes 5 to 10 minutes.

No fasting is required. It's best to avoid a heavy meal right before the test, simply for your own comfort.

Yes. Most children who are old enough to follow simple breathing instructions, usually from around 5 years of age, can do this test comfortably.

It can. Please tell our staff if you have used your inhaler recently before the test, so the result can be read correctly.

No. It is also used to help find out if a long-standing cough or breathlessness is actually being caused by asthma in the first place.

A PFT checks how well air moves in and out of your lungs. A FeNO test checks for inflammation in your airways. They give different information, and sometimes both are done together.

Yes, recent exposure to heavy dust, smoke, or strong pollution can sometimes raise the reading. If you've just come from a very dusty or smoky environment, let our staff know before the test.

Yes. The FeNO test gives a result within seconds, and Dr. Medhi explains what it means for you on the same visit.

Not on its own. A high reading suggests airway inflammation, which is common in asthma, but Dr. Medhi will look at this together with your symptoms and other test results before reaching a diagnosis.

This depends on your symptoms and treatment plan. Some patients have it repeated every few months to check if their medicines are working; your pulmonologist will advise what's right for you.

It is usually advised specifically for breathing-related symptoms rather than as part of a routine general check-up. Your doctor will recommend it if it's relevant to your case.

Pricing is kept affordable and shared upfront at the time of booking. Please call +91 88221 53356 for the latest pricing.

Book an Appointment

Ready to take the next step? Click below to book your appointment with us.

Book an Appointment