Axis Deviation Chapter 5 Definition Electrical axis The
- Slides: 25
Axis Deviation Chapter 5
Definition Electrical axis. . . The general direction in the frontal plane or toward which lead the QRS complex is predominately oriented. . . the mean direction of depolarization through the frontal plane of the heart
Mean QRS Axis Calculation Lead II
Mean QRS Axis Calculation General rules 1. the mean QRS axis points midway between any two leads that show tall R waves of equal height 2. the mean QRS axis is oriented at right angles (90°) to any lead showing a bi-phasic complex
Mean QRS Axis Calculation
Mean QRS Axis Calculation
Mean QRS Axis Calculation
Mean QRS Axis Calculation
Mean QRS Axis Calculation
Normal versus Deviation Left 1? 3 ? 2? Right + 90∘
Axis Deviation Left Right
Axis Deviation Criteria LEAD II (or Lead a. VF or III) Normal Positive LAD Positive Negative RAD Negative Positive Intermediate axis Negative
Axis Deviation RAD = If R wave in III > R wave in II LAD = If R wave in a. VL > I; and deep S wave in III
Axis deviation ? ?
Axis deviation ?
Axis deviation ?
What is the axis? Right
What is the axis? Left
What is the axis? Normal
What is the axis? Left
What is the axis? Normal
What is the axis? Right
Causes of Left Axis Deviation FYI • left anterior hemiblock • Q waves of inferior myocardial infarction • artificial cardiac pacing • emphysema • hyperkalaemia • Wolff-Parkinson-White syndrome - right sided accessory pathway • tricuspid atresia • ostium primum ASD • injection of contrast into left coronary artery note: left ventricular hypertrophy is not a cause left axis deviation
Causes of Right Axis Deviation FYI • • • normal finding in children and tall thin adults right ventricular hypertrophy chronic lung disease even without pulmonary hypertension anterolateral myocardial infarction left posterior hemiblock pulmonary embolus Wolff-Parkinson-White syndrome - left sided accessory pathway atrial septal defect ventricular septal defect
- How to determine the mean absolute deviation
- Short pr intervals
- Axis deviation formula
- Left axis deviation causes mnemonic
- Impedence method
- Advantages of self control synchronous motor
- Axis 1 and axis 2 disorders
- Transverse axis hyperbola
- Transverse axis vs conjugate axis
- Personality disorder vs mental illness
- Hình ảnh bộ gõ cơ thể búng tay
- Slidetodoc
- Bổ thể
- Tỉ lệ cơ thể trẻ em
- Voi kéo gỗ như thế nào
- Glasgow thang điểm
- Hát lên người ơi
- Môn thể thao bắt đầu bằng chữ f
- Thế nào là hệ số cao nhất
- Các châu lục và đại dương trên thế giới
- Cong thức tính động năng
- Trời xanh đây là của chúng ta thể thơ
- Mật thư anh em như thể tay chân
- 101012 bằng
- Phản ứng thế ankan
- Các châu lục và đại dương trên thế giới