Peak Expiratory flow rate: Peak Expiratory flow rate a test used to measure how fast air can be exhaled from the lungs.
Effective Asthma Management: Tips for a Healthier Home and LifestyleThe Asthma Cures - Easy Tips on Asthma - TheAsthmaCuresEffective Asthma Management: Tips for a Healthier Home and LifestyleThe Asthma Cures - Easy Tips on Asthma - TheAsthmaCuresPeak Expiratory flow rate: Peak Expiratory flow rate a test used to measure how fast air can be exhaled from the lungs.