Technique for peak flow measurement in asthma

Move peak flow meter indicator to zero.

Sit or stand up straight.

Take in a deep breath, as deep as you can.

Place peak flow meter in your mouth and close your lips around the mouthpiece*.

As soon as your lips are sealed around mouth piece, blow out as hard and fast as you can using your chest and belly muscles^¶. This should take no more than 2 seconds.

Write down the result.

Repeat two more times (three total).

Record the highest of the three values.

* Nose clips are not necessary.
¶ Make sure to use all of your breathing muscles, not just your mouth muscles. This needs a lot of force, like blowing out a candle several feet away.

Graphic 53856 Version 5.0

Buy a Package

Technique for peak flow measurement in asthma