What is low peak flow reading?
Peak flow can pick up changes in your airways, sometimes before you have any symptoms.
If your airways are tight and inflamed, your peak flow score will be lower than normal.
This could be a sign your asthma is getting worse..
Does a peak flow meter measure lung capacity?
A peak flow meter is a portable, easy-to-use device that measures how well your lungs are able to expel air. By blowing a quick blast of air through a mouthpiece on one end, the peak flow meter can measure the force of air in liters per minute and give you a reading on a built-in numbered scale.
Who should use a peak flow meter?
Peak flow meters are very helpful if you or your child have moderate to severe asthma and require daily asthma medications. Even most children ages 6 and up should be able to use a peak flow meter with good results. People with moderate-to-severe asthma should have a peak flow meter at home.
Is a spirometer the same as a peak flow meter?
A spirometer assesses a patient’s lung function, however, it offers a larger set of parametric values regarding lung health than a peak flow meter does. Spirometry requires a patient to perform specific breathing maneuvers using a spirometer.
What should peak flow be for adults?
Peak expiratory flow (PEF) is measured in litres per minute. Normal adult peak flow scores range between around 400 and 700 litres per minute, although scores in older women can be lower and still be normal. The most important thing is whether your score is normal for you.
Is 400 a good peak flow?
The highest peak flow reading for an individual occurs between the age of 30-40 years. A reading of 400- 600 l/min is considered normal. An individual suffering with asthma would have a lower reading of 200-400 l/min. Exercise can increase an individual’s peak flow reading.