Asthma is a common chronic condition that causes your airway to narrow and swell. You may experience symptoms such as shortness of breath, tightness in the chest, coughing, and wheezing. Symptoms may range from being mildly annoying to deadly. For this reason it is important to speak with a health care provider if you think you may have asthma.
For more information about asthma, visit the Asthma Society of Canada or the BC Lung Association or call the Lung Health Information Line at 1-888-566-LUNG(5864). You may also call 8-1-1 to speak with a registered nurse 24 hours a day, 7 days a week.
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.
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ByHealthwise Staff Primary Medical ReviewerJohn Pope, MD, MPH - Pediatrics Donald Sproule, MDCM, CCFP - Family Medicine Adam Husney, MD - Family Medicine Specialist Medical ReviewerLora J. Stewart, MD - Allergy and Immunology, Pediatrics