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Will I need to adjust my asthma drugs before a lung function test?

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Be prepared to adjust your asthma drugs before a lung function test. Some asthma medications can affect the test results. Different medications may need to be stopped at different intervals. Your doctor will tell you how long before testing you should discontinue any drugs you are taking. Don't stop taking any of your asthma medications without first talking to your doctor.

SOURCES:

National Institutes of Health: "So You Have Asthma."

National Heart, Blood, and Lung Institute: "What is Asthma?"

American Lung Association: “Spirometry.”

National Jewish Health: “Spirometry Testing.”

National Asthma Council Australia: “Asthma & Lung Function Tests.”

Asthma and Allergy Foundation of America: “FeNO Tests to Monitor FeNO Levels,” “Peak Flow Meters.”

American Academy of Allergy, Asthma & Immunology: “Provocation (Trigger) Tests,” “What Is a FeNO Test?”

Reviewed by Dan Brennan on May 18, 2019

SOURCES:

National Institutes of Health: "So You Have Asthma."

National Heart, Blood, and Lung Institute: "What is Asthma?"

American Lung Association: “Spirometry.”

National Jewish Health: “Spirometry Testing.”

National Asthma Council Australia: “Asthma & Lung Function Tests.”

Asthma and Allergy Foundation of America: “FeNO Tests to Monitor FeNO Levels,” “Peak Flow Meters.”

American Academy of Allergy, Asthma & Immunology: “Provocation (Trigger) Tests,” “What Is a FeNO Test?”

Reviewed by Dan Brennan on May 18, 2019

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Why would you get allergy tests for asthma?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

    This tool does not provide medical advice. See additional information.

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