Is the peak flow meter reliable enough to measure asthma? Are peak flow measurement variations sufficiently sensitive and specific in cases of occupational asthma, childhood asthma and under other asthmatic conditions?
Asthma is a serious lung condition characterized by bronchial hyper-reactivity, inflammation and mucous plugging resulting in airway constriction. An acute asthmatic attack is usually reversible by rescue inhalers. Asthma affects over 5 % of the US population and is responsible for approximately half a million hospital admissions annually in the US. 1 The Peak Flow Meter is a simple device which is very useful in measuring changes in airway ...