How is asthma diagnosed?

In this video, Dr Sanjay Sethi and Dr Heather Lehman explain that asthma diagnosis includes a detailed medical history, physical examination and lung function tests such as spirometry or peak flow. If more information is needed to make a diagnosis then other tests might include: imaging tests (x-ray), nitric oxide test, allergy tests, and methacholine challenge test.
Not everyone needs every asthma test, so talk to your doctor to find out what is best for you and to ensure no other medical problems are present.
To learn more visit www.YouAndAsthma.com

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Can asthmatic patients have a normal spirometry result