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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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Don’t Forget the Drinks if you have Food Allergies

Managing food allergies requires constant avoidance of allergens, emergency preparedness and effective communication. Going out to eat with food allergies can be challenging but is completely doable. When it comes to avoiding allergens while out to eat, the focus in the minds of patrons and eating establishments is often the food, but it is important to keep in mind that beverages can contain allergens as well. Outlined below are key points and tips to consider before you take your sips.

Avoid Cross Contact
Remember that allergens can remain in someone's saliva for several hours after eating and for some people even small amounts of an allergen can cause a severe allergic reaction. To prevent the chance of cross contact drink from your own cup and don't share with others around you. Also remember cross contact can occur with drink stirrers, shakers and other utensils used to mix drinks as with condiments like sprigs of mint or slices of fruit.

Be Aware of All Ingredients Added to the Beverage
This is especially true in the case of mixed drinks. For example if you are allergic to dairy and cream is added to your pina colada, then this can cause an allergic reaction. Some drinks contain raw egg whites - the white 'fuzz' of a Pisco sour, for example, is from beaten egg whites. Raw eggs are particularly dangerous in people with egg allergies.

Know What Ingredients Are in the Beverage
The drink itself may have an allergen in it (for example, wheat in beer). Things to consider here are that since alcohol is not regulated by the Food and Drug Administration (FDA), beverage companies that are bottling alcoholic products do not need to follow current labeling laws and do not need to disclose allergens. In fact, many alcoholic beverages do not list ingredients at all. This certainly becomes an issue for those allergic to wheat, rye, and barley as well as those with celiac disease who need to avoid wheat, rye and barley because of gluten. Similar concerns can arise with wine. If ingredients are unclear then consider calling the company for a list of ingredients. Distilled alcohol is a bit less of an issue but still worth discussing with your healthcare team.

Consider Sulfites
Also, keep in mind that sulfites can exacerbate asthma and in rare cases can cause allergic reactions. Sulfites are commonly found in many alcoholic beverages including wine, beer, ciders and drink mixes added to the alcohol.

Know Alcohol’s Effects
Another issue to take into consideration is the effect of the alcohol itself. Alcohol can decrease our ability to make good decisions and communicate effectively. Other things to consider are that alcohol can decrease the threshold level to trigger an allergic reaction, can decrease the time to develop an allergic reaction, and increase severity. However, alcohol itself is an unlikely allergen.

If you have been prescribed an epinephrine autoinjector, remember to carry this with you at all times, even if you're just going out for a drink.

This article is for educational purposes only. Talk to your healthcare provider before any change in food allergy management.

Find out more about food allergies.

The post Don’t Forget the Drinks if you have Food Allergies appeared first on Oklahoma Allergy and Asthma Clinic.

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