Peak flow measurement.

Measurement characteristics of peak expiratory flow.

STUDY OBJECTIVES To evaluate features of the peak expiratory flow (PEF) test protocol, and to characterize patterns of reproducibility in multiple PEF measurements. DESIGN Cross-sectional study. SETTING University population. PARTICIPANTS Two hundred twenty-three healthy adults. INTERVENTIONS Participants recorded five PEF measurements in each of five sessions per day for 1 week. MEAS...

Peak inspiratory flow: measurement using a modified mini Wright peak flow meter.

Ultrasonic Transducer Peak-to-peak Optical Measurement

Possible optical setups for measurement of the peak-to-peak value of an ultrasonic transducer are described in this work. The Michelson interferometer with the calibrated nanopositioner in reference path and laser Doppler vibrometer were used for the basic measurement of vibration displacement. Langevin type of ultrasonic transducer is used for the purposes of Electro-Ultrasonic Nonlinear Spect...

Comparison of peak flow gauge and peak flow meter.

A comparison has been made of the new peak flow gauge and the Wright peak flow meter. Close correlation was found between measurements made with the two instruments both in normal subjects and in patients. The peak flow gauge is as consistent as the peak flow meter but is cheaper and more portable. It should be useful in survey work in general practice and for loan from hospital outpatient depa...

effect of patient education and regular peak expiratory flow measurement on self management of asthma

for better management of asthma it is essential that patients adjust their treatment according to the medical plan developed by the health care professionals. to achieve this goal, patients should assess the severity of their disease regularly. the purpose of this study was to determine the effect of regular measurement of peak expiratory flow and patient education on self management of asthma....