Types of Peak Flow Meters
Many people have no idea what a peak flow meter is. Asthmatics may have heard the term, but may not know very much about what it does. Proper use of a peak flow meter can help an asthmatic take control of his condition. Paired with an inhaler, it can help minimize the number of attacks and help asthmatics lead a normal life.
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Definition
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According to the American Lung Association, a peak flow meter is an instrument that measures peak flow, or the force of the air in a quick puff. An asthmatic who is having an attack will have much less force than one whose lungs are clear. Peak flow meters come in two ranges: a low-range one for children, and a standard-range one for teens and adults.
How Does It Help?
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According to the American Lung Association, peak flow meters work best for people with moderate to severe asthma. Any asthmatic can use it, however. It helps by letting them know when their asthma triggers are starting to change. It can also signal the beginnings of an attack, and can help determine what is triggering one. For those who discover that their asthma is under control, the peak flow meter can provide evidence. The doctor and patient can then figure out how to lower medication dosages safely.
How to Use It
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According to Netdoctor.com, for best results, peak flow testing should be done over the course of a few weeks, with three readings every morning and evening. This will enable the user to create a chart. This chart can be brought to the doctor on the next visit ("How To Use a Peak Flow Meter"). According to the American Lung Association, the patient using the meter pushes the measuring arrow down to zero, takes a slow, deep breath, holds the meter horizontally, and gives a good, hard puff into it, emptying the lungs. The meter is then checked for a measurement. The exercise has been done properly when all three readings are close together. Chart the highest reading in each session.
Is There a Normal Rate?
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According to the American Lung Association, there is really no normal rate, simply the rate that is normal for the user. A personal "normal" can be assessed by taking daily readings (Question 6). According to the University of Virginia, the peak flow zone, which is based on optimal lung function, is as follows: green indicates 80-100% of optimal lung function, and that asthma is under control; yellow indicates 50-79% optimal lung function, and that asthma is worsening; and red notes lung function below 50 percent, indicating that a rescue inhaler is needed, and/or paramedics should be called immediately.
How Can I Get One?
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According to the University of Virginia, peak flow meters are available over the counter and without a prescription. Some allergists may have extra ones that they are willing to give to their patients. Consult a doctor before using a peak flow meter, since there are different types. This is because the doctor's instructions may be specific to the meter in question.
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