Peak Flow Variability Calculator
Peak Flow Variability Calculator . If your airways are tight and inflamed, your peak flow score will. Diurnal variation in percent =. Coefficient of variation (CV) results for the annual maximum peak flows from www.researchgate.net Peak expiratory flow is estimated via one of the three formulas, depending on the patient characteristics: If your airways are tight and inflamed, your peak flow score will. Peak expiratory flow (pef) is measured in litres per minute.