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Peak Flow Meters
Asthma is a disease of the lungs, it is known as an obstructive airway disease, because the symptoms are caused by an obstruction to the airways inside the lung. Although this obstruction is characteristically reversible, some residual obstruction is present at rest depending on the severity of the condition. So the more obstruction there is at rest, the more severe the condition is, this in turn will help determine how much and what type of treatment is needed.
What is a peak flow meter?
It is a hollow device that when breathed into can measure the velocity of the air passing through it. Because the velocity of the air being expelled is variable, the device records the highest velocity and this is used to calculate the PEFR.
What is the clinical significance of the PEFR?
|Submitted on January 16, 2014|