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五、怎样判定异常心电图为避免漏掉心电图中的异常内容,在分析心电图时应有次序地仔细测量、观察与分析各波形态、时限。通常可按下述步骤与内容进行。1.首先判定电轴是否有偏移,常规各导联(6个肢体导联和3个胸前导联)的图形是否属于正常范围,主导心律是否是窦性心律。2.仔细分析各波图形与时限、电压是否正常。分析的顺序应按 P 波、P-R 间期,QRS 形态、QRS时限及电压、ST 段、T 波、Q-T 间期、U 波等次序逐一测量与观察并与正常值相对照以判定是否异常。
Fifth, how to determine the abnormal ECG In order to avoid missing the abnormal ECG content, in the analysis of ECG should be carefully measured in order, observation and analysis of wave morphology, time. Usually according to the following steps and content. 1. First determine whether there is deviation of the electric axis, the conventional lead (6 limb leads and 3 chest lead) whether the figure belongs to the normal range, whether the dominant cardiac rhythm is sinus rhythm. 2. Carefully analyze the wave pattern and time limit, the voltage is normal. The order of analysis should be measured and observed one by one according to P wave, P-R interval, QRS pattern, QRS time limit and voltage, ST segment, T wave, Q-T interval, U wave and the like.