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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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