Call your doctor if you keep dropping into the yellow zone.

Treatment for symptoms in the yellow zone includes the following:

If you keep going into the yellow zone from the green zone, talk with your health professional.

He wondered what would happen if he jumped past the yellow zone entirely.

Keep taking these medicines even when you are in the yellow or red zones.

Based on "peak flow" results, the plans divide how you're feeling into green, yellow, and red zones.

If you are in the yellow zone, you may be having or will soon have an asthma attack.

If you stay in the yellow zone, your doctor may need to increase the dose or add a medicine.

Patients are triaged into red, yellow and green zones according to the severity of the illness.

Being in the yellow zone means that you should take action.