In the Diurnal variability section, you can input the greatest and smallest peak flow readings from one day. Diurnal variation is a valuable parameter for controlling asthma. Peak flow chart Besides using the peak flow calculator to get your value, there is also the option of reading it from ...
The diurnal variation (DV) in peak expiratory flow rate (PEFR) has been studied among 132 grain elevator workers who accomplished three daily measurements of PEFR during three weeks. DV was calculated as the difference between the highest and the lowest PEFR as a percentage of the mean PEFR ...
Diurnal variability in airways has most commonly been reported using peak expiratory flow (PEF) and forced expiratory volume in one second (FEV1). Characteristics of variability in small, mid and large airways caliber are expected to be different but have not been studied.The aim of the study ...
What Is the Main Cause of Diurnal Variation and Nocturnal Peak of Summer Precipitation in Sichuan Basin, China? The Key Role of Boundary Layer Low-Level Je... 63 1. Introduction 64 Sichuan Basin (SB) is located immediately east of the Tibetan Plateau (TP) in southwestern 65 China (Fig. ...
The amplitude of diurnal variation in PEF did not change significantly in either group. Peak flow reversibility decreased in the budesonide group. There were no differences between treatments for cough and dyspnoea, but wheeze improved in the budesonide group. The children with mild asthma treated ...
Diurnal variation in peak expiratory flow rate among grain elevator workers. Br J Ind Med. 1989;46:566-569.Revsbech P, Andersen G (1989) Diurnal variation in peak expiratory flow rate among grain elevator work- ers. Br J Ind Med 46:566-569...
PEFR is recorded in Mini Wrights Peak Flow Meter and it is commonly used for screening the individuals who are asthmatics. PEFR shows hour to hour variation that follows a specific pattern in asthmatics and healthy individuals. Circardian oscillations in the sympathetic activity may have impact ...
Diurnal variation in peak expiratory flow in healthy young adults. Indian J Chest Dis Allied Sci. 2000; 42: 15-19.Aggarwal AN, Gupta D, Chaganti S, Jindal SK. Diurnal variation in peak expiratory flow in healthy young adults. Ind J Chest Dis Allied Sc 2000; 1:15-19....
Effect of the number of peak expiratory flow readings per day on the estimation of diurnal variation. Thorax - PF, DT - 1998 () Citation Context ...ity. It could even be suggested that<4 readings?day-1 are required. However, 2 readings?day-1 can cause underestimation of the true ...
Danielle TobinCatherine DuBreckBrenton ButtonKatherine WilsonEpidemiologyGwack J, Hwang SS, Kwon HJ, Hong YC, Cho SH, Yoo Y, Yoo JH, Ko YR (2005) Effects of Asian dust events on diurnal variation of peak expiratory flow rate in children with bronchial asthma and healthy children. Epidem...