Search
× Search

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

SuperUser Account
/ Categories: News

Stinging Insect Allergy Can Ruin Outdoor Activities

When most people get stung by an insect, the sting site gets red, swells and itches. However, for those who are allergic to insect stings, their immune system overreacts to the venom in the sting. For some, a sting might be life-threatening. The reaction – anaphylaxis – is a medical emergency and could be fatal. Symptoms might include two or more of the following – itching and hives, swelling in the throat or tongue, difficulty breathing, dizziness, stomach cramps, nausea or diarrhea. Severe cases could bring a rapid blood pressure fall resulting in shock and loss of consciousness.

“If you’ve ever had a reaction to a sting, you may be allergic,” said OAAC’s Board-Certified Allergist Dr. Dean Atkinson. “If you’ve had an anaphylactic reaction, you should ask for a referral to an allergist to learn how to stay safe in the future.”

Indentifying Stinging Insects

“If you do get stung and have a reaction, pay attention to what the insect was so you can tell your allergist,” Dr. Atkinson said.

Honeybees and bumblebees only sting when provoked. Africanized honeybees also known as killer bees have been found in the Southwestern U.S. are more aggressive and may sting in swarms.  Domesticated honeybees live in man-made hives. Wild honeybees live in colonies or honeycombs in hollow trees or building cavities.

Paper wasps have nests made of a paper-like material that forms a circular comb of cells which open downward. Nests are often located under eaves, behind shutters, or in shrubs or woodpiles.

Yellow jackets have nests made of a paper-mache type material and are usually underground but can also be found in frame building walls, masonry cracks or woodpiles.

Hornets are usually larger in size than yellow jackets. Their nests are gray or brown, football-shaped and made of a paper material similar to yellow jacket nests. Hornets’ nests are usually found up in trees and shrubs, on gables or in tree hollows.

Fire ants build nests of dirt in the ground – sometimes the nests can be 18 inches tall in the right kinds of soil.

“Preventing stings is of upmost importance,” said Dr. Atkinson. “If you find a nest around your home, you should call an exterminator to have it removed.”

Insects usually sting when their homes are disturbed. If you encounter stinging insects flying around you, remain calm and move away. Avoid wearing brightly colored clothing and perfume outdoors.  The smell of food attracts insects. Be extra careful when cooking, eating or drinking sweet drinks like soda or juice. Insects can crawl inside straws or canned drinks. Keep food covered until eaten. Wear closed-toe shoes outdoors and avoid going barefoot.

Treating Stings

If the insect stinger is in your skin, remove the stinger within 30 seconds to avoid receiving more venom. A quick scrape of your fingernail will remove the stinger and venom sac. Avoid squeezing the sac – this will force more venom through the stinger and into your skin.

“Raise the limb and apply a cold compress to reduce swelling and pain,” Dr. Atkinson said. “Gently clean the area with soap and water to prevent secondary infections. Don’t break any blisters. You can use topical steroid ointments or oral antihistamines to relieve the itching.”

Dr.  Atkinson adds that if swelling progresses or the sting site seems infected, contact your physician.

“If you are severely insect-allergy allergic, carry auto-injectable epinephrine,” Dr. Atkinson said.  “Learn how to use it and keep it with you at all times. Also, some patients especially with frequent exposure to the outdoors start venom immunotherapy (allergy shots). It reduces the risk of a future severe reaction to less than 5 percent.”

Epinephrine is a rescue medication and someone will need to take you to the emergency room. Dr. Atkinson also suggests wearing a bracelet or necklace that identifies the wearer as having severe allergies.

“For those who have had a serious reaction to an insect sting, make an appointment with an allergist,” he said. “With proper testing, your allergist can diagnose your allergy and determine the best form of treatment.”

The post Stinging Insect Allergy Can Ruin Outdoor Activities appeared first on Oklahoma Allergy and Asthma Clinic.

Previous Article What are the costs of Allergies?
Next Article Lone Star Tick Bite – Alpha Gal
Print
111
Terms Of UsePrivacy StatementCopyright 2026 by Oklahoma Allergy and Asthma Clinic
Back To Top