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Peak Flow Monitoring

What is peak flow?

Peak flow is the measurement of how effectively air moves out of your lungs . A peak flow meter monitors your asthma the way a blood pressure cuff monitors your blood pressure. Measuring peak flow helps determine any narrowing in your airways before you have an actual attack. This allows you to take your medicine before a serious attack develops.

Why is peak flow monitoring so important?

Peak flow monitoring allows you and your doctor to manage your condition effectively. It gives an accurate picture of your condition that allows your doctor to make appropriate decisions regarding the effectiveness of your medicine plan and treatment plan .

Other benefits of peak flow monitoring include the following:

  • Helps you decide whether your condition is serious enough to seek emergency treatment.
  • Allows you to detect early stages of airway obstruction to start immediate treatment.
  • Gives you an accurate picture of the variations in your condition over a 24- hour period. This permits your doctor to prescribe treatment when you need it the most.
  • Helps you differentiate between airway obstruction and other causes of breathlessness like hyperventilation.
  • Allows you to ascertain specific allergens, irritants, or workplace exposures that may cause your symptoms to develop.
  • Enables you to communicate more effectively with your doctor so that he or she can provide guidance over the phone if needed.
  • May be an effective detector to monitor whether your asthma symptoms have stabilized, improved, or deteriorated/worsened.

How do I start?

Most adults and young children can use a peak flow meter.

All it requires is a short, hard blow of air into the meter. Here's how to use the peak flow meter :

  • Place the indicator at the base of the numbered scale.
  • Sit upright or stand up.
  • Take a deep breath .
  • Place the meter in your mouth and close your lips around the mouthpiece. Be sure not to put your tongue in the hole.
  • Blow out as hard and fast as you can.
  • Write down the number that you get.
  • Repeat the above steps two more times.
  • Write down the highest of the three numbers in your asthma diary.

What is the "Three Zone" system?

You need to find your personal best peak flow number. This is the highest number that you can attain over a 2-week period when you feel good and do not have any asthma symptoms. These measurements should be taken when you wake up and in the evening. They should also be taken before and after taking an inhaled medication , if you use one. Keep an accurate record of these readings so that you can discuss them with your doctor.

Peak flow numbers have been put into zones that are set up like a traffic light. Using your personal best peak flow number, you can determine what zone the reading falls in and respond with the appropriate treatment.

For example:

traffic signal with red, yellow, and green lights

GREEN ZONE (80% to 100% of your personal
best number)

The green zone signals all clear. No asthma symptoms are present and you can take your medications as you have been doing.

YELLOW ZONE (50% to 8O% of your personal best number)

The yellow zone signals caution. You may be having an asthma attack that requires an increase in medication, or your doctor may need to change your treatment plan because your asthma is not under control.

RED ZONE (below 50% of your
personal best number)

The red zone signals a medical alert. You should first take your short-acting bronchodilator immediately and then contact your doctor right away.

Be sure to talk to your doctor regarding peak flow monitoring. Your particular zones should be established based on your individual condition.

How do I keep track of my peak flow readings?

It is important to keep a daily diary of your peak flow readings so that you and your doctor can better evaluate your treatment plan . This information can help you to effectively control your condition and lead a more active, healthy life.

Recent News

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Oklahoma Allergy & Asthma Clinic Warns High Heat May Trigger Asthma Flare-Ups

Doctors urge residents to take precautions as extreme summer temperatures hit Oklahoma

With dangerous heat and humidity gripping Oklahoma and much of the Southern United States, the Oklahoma Allergy & Asthma Clinic is urging individuals with asthma and respiratory conditions to take extra precautions. According to clinic physicians, extreme heat can significantly worsen asthma symptoms and contribute to a rise in asthma related medical emergencies during the summer months.

“Oklahomans with asthma need to take summer heat seriously,” said Dr. Dean Atkinson, a board-certified allergist at the Oklahoma Allergy & Asthma Clinic. “High temperatures and humidity can combine with high pollen and high mold levels to create a perfect storm for asthma attacks.”

Excessive heat, often accompanied by high ozone levels, humidity, and stagnant air, poses multiple threats to individuals with asthma. According to the Centers for Disease Control and Prevention (CDC) and the American Lung Association, heat increases inflammation in the airways, while humidity can trap allergens like mold spores, dust mites, and pollen—making it harder to breathe and easier to trigger flare-ups.

“We see a clear uptick in asthma flare-ups during Oklahoma’s high heat index days,” added Atkinson. “Staying cool and following an asthma action plan are critical steps for staying safe.”

In Oklahoma, where summer temperatures often reach triple digits, local air quality can deteriorate rapidly. The Oklahoma region continues to experience “HIGH ALLERGY ALERT DAYS” and “Ozone Alert Days,” with elevated pollen, mold, and pollution levels that can exacerbate asthma symptoms, especially for children, seniors, and individuals with chronic lung disease.

TIPS TO HELP YOU BREATHE EASIER WHEN THE HEAT IS ON

To help residents protect their respiratory health, physicians at the Oklahoma Allergy & Asthma Clinic recommend the following five strategies during extreme heat:

1. Stay indoors in air-conditioned spaces, especially during peak heat and ozone hours (typically mid-afternoon).

2. Stay hydrated to help maintain healthy airway function.

3. Check the Daily Pollen and Mold Report and the Air Quality Index (AQI) and avoid strenuous outdoor activity on high alert days.

4. Follow your asthma action plan and keep quick-relief inhalers accessible at all times.

5. Minimize exposure to additional triggers, such as cigarette smoke, cleaning chemicals, and other pollutants.

“Children are especially vulnerable to the effects of extreme heat and poor air quality. Their lungs are still developing, and they tend to be more active outdoors, which increases their exposure to asthma triggers during high heat index days.” says Dr. Maya Gharfeh, another board-certified allergist at the Oklahoma Allergy & Asthma Clinic

The Oklahoma Allergy & Asthma Clinic encourages all asthma patients to review their action plans and speak with their healthcare providers about how to adjust medications or activity levels during extreme weather.

For more information about asthma care, pollen counts, and summer safety tips, visit www.oklahomaallergy.com or follow the clinic on social media.

About Oklahoma Allergy & Asthma Clinic

Founded in 1925, Oklahoma Allergy & Asthma clinic has a 100-year history of patient-focused, state-of-the-art allergy and asthma care. Today, the clinic is home to 13 allergy and asthma specialists, caring for tens of thousands of patients a year with a focus on evidence-based treatment, research, and patient education. To learn more, visit OklahomaAllergy.com.

The post Oklahoma Allergy & Asthma Clinic Warns High Heat May Trigger Asthma Flare-Ups appeared first on Oklahoma Allergy and Asthma Clinic.

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