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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.

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May is Allergy and Asthma Awareness Month

Breathe Better with Asthma, Wherever You Are

If you have asthma, you know that symptoms can come on quickly, then worsen. The things that make them do that are called triggers. An important part of managing asthma is knowing what your triggers are — at home, work, school, or while you’re outdoors. A healthcare provider can help you figure that out, then you can take steps to avoid those triggers and breathe easier.

At home

Because asthma is usually due to allergies, triggers are often allergens, or things that cause allergic reactions. Allergens such as pet dander, dust mites, pests, and smoke can make asthma symptoms worse in some people, and for others, even trigger an asthma attack. The National Heart, Lung, and Blood Institute (NHLBI) suggests that it may be helpful to combine a few different strategies to help reduce exposure to triggers. People sensitive to dust can clean with a high-efficiency particulate air (HEPA) filtration vacuum and use mattress and pillow covers that prevent exposure to dust mites. If you’re sensitive to pests like cockroaches and rodents, consider integrated pest management, which involves removing and controlling pests through methods such as traps or poison. Avoiding tobacco smoke, including secondhand smoke, can be especially helpful for some people with asthma.

At school

Asthma is one of the leading reasons children miss school. At school, kids may be exposed to dust mites, pests, and mold, which may be asthma triggers for some children. Because children spend lots of time at school, it can be helpful for teachers, school nurses, or coaches to know what to do if your child’s symptoms flare up. Team up with a healthcare provider to develop an asthma action plan and share it with trusted adults at your child’s school.

At work

The workplace can have hundreds of potential triggers, like chlorine-based cleaning products, bleaches, hair dyes, and metal dust. Repeated exposures in the workplace can also lead to new triggers. Report new or worsening symptoms that occur at work to your healthcare provider and your workplace supervisor.

Outdoors

Everyday weather like cold, dry air can set off breathing problems. Air pollution can affect asthma, too. It may be helpful to avoid some of the worst pollution by adjusting when and where you exercise. Try to avoid exercising near busy roads or industrial areas. Visit airnow.gov to check your local air quality so you can plan to avoid outdoor activities when pollution is highest.

Managing your triggers is just one part of keeping your asthma under control. Work with a healthcare provider to develop an asthma treatment plan that includes taking medicines as prescribed and keeping track of your symptoms and where you are when they occur. That way, you can know what’s making your asthma worse or better.

Want to learn more about asthma? Visit NHLBI’s Learn More Breathe Better® program at nhlbi.nih.gov/BreatheBetter. Or make an appointment to meet with one of our asthma specialists at Oklahoma Allergy & Asthma Clinic 405-235-0040.

The post May is Allergy and Asthma Awareness Month appeared first on Oklahoma Allergy and Asthma Clinic.

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