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Asthma Action Plan: Green Zone

Topic Overview

An asthma action plan is a written plan of what to do if you or your child has an asthma attack. The green zone of the asthma action plan is where a person with asthma wants to be every day. When in the green zone:

  • The peak expiratory flow is 80% to 100% of the person's personal best measurement. To find 80% of your personal best, multiply your personal best measurement by 0.80. For example, if your personal best flow is 400, then 80% of that is 400 times 0.80, which is 320.
  • The person does not have any symptoms of an asthma attack.
  • The person is able to do his or her usual activities and can sleep without having symptoms.

If you or your child continues to stay in the green zone for several weeks, your doctor may reduce the amount of daily asthma medicine.

Credits

By Healthwise Staff
Primary Medical Reviewer John Pope, MD - Pediatrics
Specialist Medical Reviewer Lora J. Stewart, MD - Allergy and Immunology
Last Revised March 14, 2013

Last Revised: March 14, 2013

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