国产塑料线的耐低温及耐折性能不太好,往往会在电极头的根部断线,造成心电图受干扰。导联线有多根,如何判断是哪一根有故障呢?本人的经验是:①当Ⅰ、Ⅱ、Ⅲ导联中只有一个导联工作正常,其余导联均有较大干扰时,可用附图的三角形进行判断。附图中Ⅰ、Ⅱ、Ⅲ表示导联,红、黄、绿表示导联线的颜色。正常 The low temperature resistance and folding endurance of domestic plastic wire is not very good, and it often breaks at the root of the electrode tip, causing electrocardiogram interference. There are multiple lead wires, how to determine which one is faulty? My own experience is: 1 When only one lead in I, II, and III lead works properly, and the other leads have greater interference, The triangle of the figure is judged. In the drawings, I, II, and III indicate the leads, and red, yellow, and green indicate the colors of the leads. normal