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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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Allergies, Asthma and Winter Holidays

With the arrival of winter, seasonal allergic rhinitis (hay fever) and asthma sufferers can breathe relief as most outdoor allergens disappear until spring. But holiday gatherings and spending more time indoors exposes many people to different allergen triggers.

Food Allergies During the Holidays
Food plays a central role in many events. If you have a food allergy, these functions can be difficult to navigate. Be sure to ask about the ingredients used to make each dish. Be aware that cross-contamination can occur during preparation. If you think the foods served pose too much risk, or if you just don’t feel comfortable eating foods provided by others, you don’t have to. Bring your own snacks or eat before you arrive.

Even if you take every precaution, there’s still a slim chance of an allergic reaction. Have your autoinjectable epinephrine at-hand just in case.

Other Holiday Triggers
Holiday decorations, travel and stress can all present challenges for people with allergies and asthma. Here are some of the most common triggers to be on the lookout for:
•    Does your Christmas tree make you sneeze or cause shortness of breath? It’s unlikely that you are allergic to the tree itself, but the fragrance may be irritating. Some trees may also be home to microscopic mold spores that trigger asthma or allergies, causing symptoms like sneezing or an itchy nose. Use an artificial tree or, if you must have the real thing, let the tree dry in a garage or enclosed porch for a week and give it a good shake prior to bringing it inside.
•    Follow directions carefully when spraying artificial snow or flocking. Inhaling these sprays can irritate your lungs and trigger asthma symptoms.
•    If you leave your pet behind when traveling for the holidays, you may experience allergy or asthma symptoms on your return home. Dubbed the “Thanksgiving Effect” this phenomenon occurs when a person loses tolerance to her own pet after being away for a few days.
•    Be aware that stress can lead to asthma attacks. Chemicals released by the body during stressful times can cause the muscles around your airways to tighten, making it difficult to breathe.

Talk to your OAAC provider to be ready for the holidays. 

The post Allergies, Asthma and Winter Holidays appeared first on Oklahoma Allergy and Asthma Clinic.

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