You can also use a peak flow chart to find your normal peak flow value. At the end of the text, you can also read a short set of instructions on how to use a peak flow meter and obtain the proper result. If you're interested in diseases of the respiratory system, check out our ...
The meter comprises a piston or a vane which is moved within the casing against the action of a spring by air blown into the casing. The piston or vane moves alongside a uniform width slot in the casing so as to expose a portion of the slot to the space within the casing into which...
Although PEFR usually correlates well with FEV1, this correlation decreases in patients with asthma as airflow diminishes. [2] PEFR monitoring can be accurately performed by most patients older than 5 years. It is most commonly measured by a portable flow gauge device (peak flow meter [PFM])...
Spirometryis the most frequently used clinicallaboratory testfor assessing and monitoringasthma in children. Spirometry can contribute to the diagnosis of asthma, moreover in the presence of asthma-related symptoms. Nevertheless, spirometry can range within normal values in asthmatic children, while spiro...
The peak flow rate. Respiratory function tests have been performed on schoolchildren in Zaria, Nigeria, to determine normal values among healthy children. Three hundred and ei... JR Nairn,AJ Bennet,JD Andrew,... - 《Archives of Disease in Childhood》 被引量: 83发表: 1961年 Comparison of ...
Spirometry (low values compared with normal values), indicating that the body oxygen uptake and exhaust, the oxygen supply inside the body is not sufficient, once the body needs a lot of oxygen consumption situation (such as long time learning, work, strenuous exercise) there will be a serious...
A peak flow meter is a portable easy-to-use device that measures how well your lungs are able to expel air.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小
Flowmeter Diesel Fuel Oil Digital Peak Portable Sewage Heat Compressed Air Energy Ultrasonic Flow Meter sensorAs the customers' requirement Selling Units: Single item Single package size: 30X20X10 cm Single gross weight: 3.200 kg Supply Ability Supply Ability 1000 Piece/Pieces per Week Show more ...
PEF measurements using a mini Wright meter were shown to correlate well with peak flow derived from the FVC maneuver, and had coefficients of variation of 2-14 percent. Significant percentage changes were found to differ from arbitrary values previously cited for use....
Peak flow meter United States Patent 6314822 Abstract: An air-flow measuring device for measuring respiratory performance includes a valve having at least one rotary blade for detecting air-flow through the device. The valve includes at least one air-directing aperture which alters the direction of...