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对800例正常人右胸导联心电图进行分析,提示P波绝大多数为小圆直立P,时间<0.1S,电压<0.2mV。V_1、V_3R96.12％为rS型,由V_1至V_5Rr波逐渐消失,1/3正常人V_4R、V_5R呈qR、qRS、QS型。V_5RQ=0.04s者占Q波出现人数的24.26％。Q/R比值>1/3V_4R占62.5％,V_5R占77.2％。ST段V_4R、V_5R在等电位线上约占95％,V_1、V_3R上斜型抬高≤0.1mV为17.6％。T波多与QRS主波方向一致,倒T深度不超过0.4mV。
Analysis of 800 normal right chest lead ECG, suggesting that the vast majority of P wave small vertical erected P, time <0.1S, voltage <0.2mV. V_1, V_3R96.12% of rS type, from V_1 to V_5Rr wave gradually disappeared, 1/3 normal persons V_4R, V_5R was qR, qRS, QS type. V_5RQ = 0.04s accounted for 24.26% of the number of Q waves appear. Q / R ratio> 1 / 3V_4R accounted for 62.5%, V_5R accounted for 77.2%. ST segment V_4R, V_5R in the equipotential line about 95%, V_1, V_3R ramp-type elevation ≤ 0.1mV was 17.6%. T wave and QRS main wave direction consistent, inverted T depth does not exceed 0.4mV.