The By recording your peak flow, you

The peak flow is used to record the
speed at which you can empty all the air from your lungs. Using this information
you are able to how well your lungs are functioning.
Taking readings twice every day and keeping a record of the results enables you
to see if your medication is working and see if your asthma is getting worse.
This allows you to take action to reduce the risk of an asthma attack.

To measure
your peak flow:

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–       I would get my client into a comfortable
position, either sitting upright or standing up straight.

–       Then I would need to reset the peak flow meter
so the arrow is pushed back to the start of the scale.

–        I need
to hold the meter so it is horizontal and make sure my hands are not blocking
the arrow on the measuring scale.

–       Then I will tell them to take in a deep breath
to fill their lungs with as much air as possible.

–       I will ensure the patient has created a tight
seal around the mouthpiece, then tell them to blow as hard and fast as possible
into the meter, whilst keeping the tight seal around the mouthpiece.

–       The readings will then be recorded.  

By recording your peak flow, you can:

–       Take
peak flow readings regularly to track the severity of your asthma.

–       Identify
and record any triggers or allergies that could be making your asthma worse, for
example exercise or cold days.

See how your airways are affected by using
your medication everyday.

Spot any warning signs of an asthma
attack so you can take action to reduce the risk and avoid an attack.

an asthma attack, ensure you record your peak flow regularly to monitor any
changes that could be signs of a possible asthma attack.


Your peak flow will be displayed on the side of
your peak flow meter. It is given in litres of air breathed out per minute