NHLBI Asthma Action Plan 2020 (NIH Pub. 20-HL-5251)

This two-page plan from the National Heart, Lung, and Blood Institute gives a patient written instructions for daily asthma care and flare-ups. The clinician fills in controller and quick-relief medicines, doses and peak flow ranges for green, yellow and red zones, plus danger signs that call for emergency care. It was updated in December 2020 to align with the 2020 Focused Updates to the Asthma Management Guidelines.

Who completes it

The patient's physician or other health care provider completes the front page with the patient: name, doctor, date, phone numbers, medicines, doses and peak flow numbers. The patient or family checks off known triggers on the back page, which has no signature line.

How to fill it in

For / Doctor / Date / Doctor's Phone Number / Hospital/Emergency Department Phone Number

Enter the patient's name, the doctor's name and the date the plan was written, then the doctor's phone number and the hospital or emergency department number. These numbers are what the patient reaches for in the yellow and red zones, so fill both in. The date tells the patient, family and school which version of the plan is current.

Green Zone: Doing Well

The green zone describes no cough, wheeze, chest tightness or shortness of breath day or night, and doing usual activities. If a peak flow meter is used, enter the value for 80 percent or more of personal best and the personal best itself. List each daily medicine with how much to take and when, then name the medicine for the before-exercise line, printed as 2 or 4 puffs 5 minutes before exercise.

Yellow Zone: Asthma Is Getting Worse

Symptoms include cough, wheeze, chest tightness or shortness of breath, waking at night, or doing some but not all usual activities, or a peak flow of 50 to 79 percent of best. Enter the quick-relief medicine, number of puffs, how often it can be repeated and the maximum doses, or nebulizer once, while green zone medicines continue. If not back in green after 1 hour, enter the next quick-relief dose, the oral steroid in mg per day for 3 to 10 days, and the hours within which to call the doctor.

Red Zone: Medical Alert!

The red zone covers being very short of breath, quick-relief medicines not helping, not being able to do usual activities, or symptoms the same or worse after 24 hours in the yellow zone, or a peak flow under 50 percent of best. Enter the quick-relief medicine with number of puffs or nebulizer and the oral steroid dose in mg. The plan then tells the patient to call the doctor now and go to the hospital or call an ambulance if still in the red zone after 15 minutes and the doctor hasn't been reached.

Danger Signs

Trouble walking and talking due to shortness of breath, or blue lips or fingernails, call for taking the quick-relief medicine and going to the hospital or calling for an ambulance now. Fill in the number of puffs, the quick-relief medicine name and the emergency phone line, since this box is meant to be acted on without further thought.

How to Control Things That Make Your Asthma Worse (page 2)

The back page lists allergens (dust mites, cockroaches and rodents, animal dander, indoor mold, pollen and outdoor mold), irritants (tobacco smoke, smoke, strong odors and sprays, vacuum cleaning) and other factors (sulfites, cold air, other medicines). The patient checks the triggers known to worsen their asthma and asks the doctor to help identify others. The page notes that tips work better combined and that the provider can help choose which ones fit.

Common mistakes

  • Leaving the peak flow zone numbers blank for a patient who uses a meter; NHLBI asks providers to write the numbers for each zone on the plan.
  • Setting zones without a personal best; NHLBI defines it as the highest reading over a two-week period when asthma is under good control.
  • Omitting the yellow-zone oral steroid dose, the number of days (3 to 10) or the hours within which to call the doctor.
  • Leaving the danger-signs puffs, medicine name or emergency phone line blank, so the patient lacks instructions at the most urgent moment.
  • Handing out an older plan; the current version reflects the 2020 Focused Updates and carries NIH Publication No. 20-HL-5251.

Submitting and payment

How to submit it
Give the completed plan to the patient or parent to keep at home. Copies are commonly shared with schools and child care programs, and nothing is filed with NHLBI.
Who pays
NHLBI offers the template free, with printed copies available at no cost in small quantities, and sets no fee for completing it.

Good to know

  • The fillable PDF carries NIH Publication No. 20-HL-5251. The page is dated December 2020 and the file footer February 2021, and NHLBI lists it in English only.
  • Peak flow zones are optional: green is 80 percent or more of personal best, yellow 50 to 79 percent, and red under 50 percent. Symptoms alone can define each zone.
  • NHLBI's monitoring fact sheet defines personal best as the highest reading over two weeks of good control, found by measuring at least twice a day for two to three weeks.
  • The back page lists trigger-control steps for dust mites, pests, animal dander, mold, pollen, smoke, strong odors, sulfites, cold air and medicines such as aspirin and nonselective beta-blockers.

Get the official form

Download the current version from the source each time; forms change without notice.

Asthma Action Plan

How this list is checked

A form is listed only after its name and number were confirmed on the issuing agency’s or insurer’s own website, or in the form itself. Each entry links to that source. The list was last checked in October 2026. Forms and their requirements change without notice, so check the official page for the current version before you complete one.

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Frequently asked questions

Is the NHLBI asthma action plan available in Spanish?

NHLBI lists the December 2020 Asthma Action Plan in English only, as a two-page fillable PDF. The template is widely re-hosted by state asthma programs, so check that any copy you hand out is the 2020 version, which carries publication number 20-HL-5251 and reflects the 2020 Focused Updates to the Asthma Management Guidelines.

How are peak flow zones set on the NHLBI asthma action plan?

Each zone has a blank for peak flow based on the patient's personal best: 80 percent or more in green, 50 to 79 percent in yellow, and less than 50 percent in red. NHLBI asks providers to write the numbers for each zone, the medicines to take and the steps to follow. If no meter is used, the symptom lists define the zones.

Does the NHLBI asthma action plan need a signature?

No. The plan has fields for the patient's name, the doctor, the date and phone numbers but no signature line or parent consent section. NHLBI presents it as a worksheet the patient completes with the health care provider to record how to monitor asthma and how to treat changing symptoms or attacks.

What does the 'before exercise' line on the plan mean?

In the green zone, below the daily medicines table, the plan has a line for a medicine to take before exercise, printed as 2 or 4 puffs 5 minutes before exercise. The clinician writes in the medicine name so the patient knows which inhaler to use ahead of physical activity.