RT期刊文章SR电子T1最大呼气流量和阻力mini-wright峰值流量计摩根富林明欧洲呼吸杂志乔和J FD欧洲呼吸学会SP 828欧元OP 833 10.1183 / 09031936.96.09040828 VO 9是4 A1皮德森A1 TR拉斯穆森A1 O Omland A1 T Sigsgaard A1 PH Qu188bet官网地址anjer A1米勒先生年1996 UL //www.qdcxjkg.com/content/9/4/828.abstract AB本研究的目的是检查的电阻峰值流量计是否影响其录音。一百一十二,(健康不吸烟者和吸烟者与肺部疾病和主题)执行三个或更多最大呼气流量(PEF)演习通过Fleisch pneumotachograph有无mini-Wright高峰流量计中添加随机顺序串联电阻。结果如下。与单独pneumotachograph相比,最大流量测量与额外mini-Wright计有一个较小的变异在测试,定义为之间的区别和第二高值最高的脉动电场在一系列的打击。均值(SE)变异14岁(1.3)L。最低为1到19岁(1.5)L。分别与没有米补充道,最低为1。与仅pneumotachograph相比,增加引起的mini-Wright计PEF underread,特别是在高流动。的区别(PEF计- PEF没有米)= -0.064 (PEF)平均8 L.min-1;R2 = 0.13。平均差为-7.8(1.1)%,并增加数值对于给定的脉动电场,当最大呼气流量75%用力肺活量还有待呼出(MEF75%FVC)下降。 The reproducibility criteria for repeated measurements of peak flow are more appropriately set at 30 L.min-1 than the commonly used 20 L.min-1, because a within-test variation of less than 30 L.min-1 was achieved in 76% of the subjects without PEF meter inserted and in 88% with meter inserted, with no difference between healthy untrained subjects and patients. The resistance of the peak expiratory flow meter causes less variation in recordings but reduces peak expiratory flow, especially at high values and when the peak is large as compared with the rest of the maximal expiratory flow-volume curve.