Skip to Content
Search All Programs & Services
Search by Name, Specialty, Program, or Research
Make a Donation
Make an Appointment
Ask a Question
Refer a Patient
Health Information > Condition Information > Lifestyle Management > General Tools > Peak Flow Zone Chart
Reviewed on 4/12
By Dr. Tinkelman
David Tinkelman, MD
Medical Director, Health Initiatives
View full profile
The following table shows an example of how these zones work. Your doctor can help you create a similar table for your own asthma.
Your breathing is good.
You do not have any early warning signs or asthma symptoms.
Take all your medicines every day, as your doctor tells you.
Take your inhaler before exercise, as your doctor tells you.
Runny, stuffy nose.
Feel more tired.
Chin or throat itches.
Red or pale face
Dark circles under your eyes
Use "rescue" medicine
Recheck peak flows after 20-30 minutes
Call your doctor, healthcare professional, or nurse care manager:
if your peak flow is not back to the Green Zone
if your peak flow drops into the Yellow Zone again in less that 4 hours.
Cough, more at night
Chest feels tight or hurts
Breathing faster than normal
Get out of breath easily
Use your quick-relief medicine by inhaler or nebulizer right away!
Call your doctor or 911 NOW
BACK: Peak Flow Meter
Enter your email address to receive health tips, recent research findings and news about National Jewish Health.
1400 Jackson St Denver, CO 80206 1.877.225.5654 Network of Locations Contact Us
© 2016 National Jewish Health Policies & Guidelines | My National Jewish Health