Lung and Respiratory - Peak Expiratory Flow Variability in Asthma

Peak Expiratory Flow Variability in Asthma

Highest PEF
Lowest PEF
Avg Daily Variability
Decimal Precision:
PEF Variabilty
0-14 Variability:Uncharacteristic of Asthma
15-19 Variability:Supports dx of asthma
20-30 Variability:Mild Persistant Asthma
31-100 Variability:Moderate to severe persistant
AvgDailyVariability = 100 * (HighestPEF - LowestPEF) / HighestPEF
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