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A peak flow meter is a small, hand-held device used to manage asthma by monitoring airflow through the bronchi and thus the degree of restriction in the airways. The peak flow meter measures the patient's maximum ability to expel air from the lungs, or peak expiratory flow rate (PEFR or PEF). Peak flow readings are higher when patients are well, and lower when the airways are constricted. From changes in recorded values, patients and doctors may determine lung functionality, severity of asthma symptoms, and treatment options.
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NAL Energy Corporation Reports Fourth Quarter and Year-End 2010 Results
9 Mar 2011 at 1:46pm
CALGARY, ALBERTA--(Marketwire - March 9, 2011) - NAL Energy Corporation ("NAL" or the "Corporation") (TSX:NAE) today announced its financial and operational results for the fourth quarter and year ended December 31, 2010 as well as 2010 year-end reserves. All amounts are in Canadian dollars unless otherwise stated. S
Tide Turns for Turbines
28 Feb 2011 at 1:17pm
Capricious air currents and passing clouds may thwart wind and solar power , but the tides, governed by the gravitational pull of the moon and the sun, might prove a more dependable energy source. In certain spots, the tides have already proved a good source of electricity.
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Peak expiratory flow - Wikipedia, the free encyclopedia
The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) is a person's maximum speed of expiration, as measured with a peak flow meter, a small ...
Using a Peak Flow Meter to Manage Asthma
The experts at WebMD explain how to manage your asthma using a peak flow meter.
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