Peak Current Measurement and Symptom Monitoring
One of the most important steps in managing asthma effectively is to monitor it regularly. A peak flow meter and a symptom diary allow you to track the progress of your asthma with numbers and notes. This way, you can often catch worsenings before you even notice them.
What is peak current?
Peak flow measures how quickly you can exhale air after a deep breath and is expressed in liters per minute. This value decreases when the airways narrow. The peak flow meter is a small, portable, and easy-to-use device.
Peak flow spirometry is not a replacement for regular home monitoring. However, it is a very useful tool for regular monitoring at home.
How is it measured?
Set the indicator to zero.
Stand or sit upright.
Take as deep a breath as you can.
Close the mouthpiece tightly with your lips; do not place your tongue at the front of the mouthpiece.
Blow the air in one gulp, as fast and as hard as you can.
Note the value, then reset the indicator.
Take the measurement three times and record the highest value.
Personal best value
Peak airflow values vary depending on age, height, and gender. Therefore, what matters is not the overall charts, but your personal best value . This value is the highest measurement taken over a two to three-week period when your asthma is well controlled. The green, yellow, and red zones in your action plan are calculated based on this value.
When should we measure it?
Unless your doctor has given you a specific program, these times are generally recommended:
Every morning, before taking your medicine
When symptoms worsen
Before and after using the reliever inhaler
In the weeks following a change in treatment
Daily measurements are not necessary for everyone. It is more beneficial for those with severe asthma, those who notice symptoms late, or those whose treatment has recently changed.
Keeping a symptom diary
Numbers alone don't tell the whole story. Keeping a short journal of the following will make your doctor's appointments much more productive:
Symptoms during the day (cough, wheezing, shortness of breath)
Night awakenings
How many times have you used the reliever inhaler?
Possible triggers (changes in weather, exercise, illness, dust, smoke)
Missed school or work days
These notes can be kept in a notebook, a note-taking app on your phone, or an app designed for asthma tracking. The important thing is consistency, not the method.
A simple way to evaluate control.
Think about the last four weeks:
Have you experienced daytime symptoms more than twice a week?
Did you wake up at night because of asthma?
Did you need the reliever inhaler more than twice a week?
Have you restricted any of your activities because of asthma?
If you answer "yes" to even one of these questions, your asthma may not be fully controlled. Discuss this with your doctor.
This text is for informational purposes only. Consult your doctor for measurement frequency and target values.
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