常见心电图识别.ppt是.ppt

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常见心电图识别.ppt是

常见心电图识别 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 一、正常心电图 normal ECG Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 心电图综合波、间期和段的检测 determination of ECG complexes, intervals, and segments 定标电压1cm=1mV,纵坐标每一小格=0.1mV 横坐标每1大格分为5小格,每小格=0.04sec 每1大格=0.2sec Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 心率的检测 determination of the heart rate R-R间距为0.6sec,心率=60÷0.6=100次/min 心 率 100 次/min Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 平均心电轴 1. 概念 心室除极的总方向 2.方法 目测法 I III QRS极性 查表法 测量并计算出I III 导联QRS振幅的代数和 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 电轴左偏 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 电轴右偏 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 正常心电图综合波、间期和段的图解 diagram of ECG complexes, intervals, and segments Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 正常心电图综合波、间期和段的图解 diagram of ECG complexes, intervals, and segments 1.P波:表示心房除极化,宽度不超过0.11sec;振幅在肢体导联不超过0.25mV,胸导联不超过0.20mV    Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 正常心电图综合波、间期和段的图解 diagram of ECG complexes, intervals, and segments 2. PR段(PR segment):反映心房的复极过程及房室结和房室束的电活动,该段长度P波时限。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 正常心电图综合波、间期和段的图解 diagram of ECG complexes, intervals, and segments 3. P-R间期(P-R interval):P波与P-R段合计为P-R间期,正常为0.12~0.20sec P-R interval Evaluation only. Created wit

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