+606 – 315 8930 / +606 – 315 8931

+606 – 315 8888 / +606 – 225 2888

Fractional Exhaled Nitric Oxide (FeNO) Test

FeNO test is a biomarker of airway inflammation. Your body makes nitric oxide (a gas), which gets released when you exhale. A FeNO test measures the level of nitric oxide in your breath. Elevated levels of exhaled nitric oxide indicate airway inflammation.

Airway inflammation is an important component of asthma, chronic obstructive pulmonary disease (COPD), and various cough syndromes. Airway inflammation can lead to airway hyperresponsiveness and airway obstruction.

What FeNO Test offer?

Accurate results within 1 minute

Suitable for adults and children 

2 exhalation modes 

How a FeNo measurement is performed?

  1. Empty lungs by breathing out thoroughly.
  2. Inhale deeply through mouthpiece to total lung capacity.
  3. Exhale slowly through mouthpiece and follow on-screen display to complete the test.
  4. See result FeNO measurement will appear in approximately 1 minute.

For more information, please contact Diagnostic Imaging, Level 1

+606 -315 8823


Our Doctor

Dr. Rashidah Bt. Yasin

MB BCh BAO (Ire), Master of Internal Medicine (UKM)
Fellowship of Respiratory Medicine (Mal)
Fellowship of Sleep Medicine (Bangkok)
International Sleep Disorder Specialist (WSS, US)
Registered Polysomnographic Technologist RPSGT (BRPT)


Internal Medicine & Respiratory Medicine

Full-Time Consultant

2nd Floor
Suite C-212
+606 - 315 8843
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Dr. Jamalul Azizi Bin Abdul Rahman

MMED Internal Medicine (UKM), FCCP (USA)


Internal Medicine & Respiratory Medicine

Visiting Consultant

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