Creating an Asthma Action Plan may help you keep track of how well your asthma is being managed. And your plan can let you know what to do if it's not. By getting a peak flow meter reading, you can determine which zone you're in. Then you can rate your symptoms.

Together, you and your doctor can use your action plan to come up with a treatment strategy. So print out your Asthma Action Plan and bring it with you to your doctor.

	Green Zone: Peak flow meter reading of 80 percent or better of your best reading	Your asthma is probably well managed and your lung function is good: You are probably able to work, stay active, and sleep comfortably.
	Yellow Zone: Peak flow meter reading between 50 percent and 80 percent of your best reading	Caution: You may notice that your asthma symptoms, like wheezing, coughing, chest tightness and shortness of breath, may be getting worse. It's important to care for your asthma now, before you move into the red zone, and your symptoms worsen.
	Red Zone: Peak flow meter reading below 50 percent of your best reading	Medical alert: You're probably having trouble breathing and are experiencing a serious asthma attack. Take action immediately.