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2. Right axis deviation - Wikipedia

   en.wikipedia.org/wiki/Right_axis_deviation

   If lead b is positive, the electrical heart axis can be estimated to lie within the quadrant between axis of lead a and lead b. A simple tool to quickly identify axis deviation (Figure 3) is the popular mnemonic; Reaching for Right Axis Deviation and Leaving for Left Axis Deviation. This refers to the appearance of leads I and II.

3. Electrocardiography - Wikipedia

   en.wikipedia.org/wiki/Electrocardiography

   Electrocardiography is the process of producing an electrocardiogram (ECG or EKG [a]), a recording of the heart's electrical activity through repeated cardiac cycles. [4] It is an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart [ 5 ] using electrodes placed on the skin.

4. Hexaxial reference system - Wikipedia

   en.wikipedia.org/wiki/Hexaxial_reference_system

   The hexaxial reference system is a diagram that is used to determine the heart's electrical axis in the frontal plane. The hexaxial reference system, better known as the Cabrera system, is a convention to present the extremity leads of the 12 lead electrocardiogram, [1] that provides an illustrative logical sequence that helps interpretation of the ECG, especially to determine the heart's ...

5. QRS complex - Wikipedia

   en.wikipedia.org/wiki/QRS_complex

   Schematic representation of a normal sinus rhythm ECG wave. Diagram showing how the polarity of the QRS complex in leads I, II, and III can be used to estimate the heart's electrical axis in the frontal plane. The QRS complex is the combination of three of the graphical deflections seen on a typical electrocardiogram (ECG or EKG). It is usually ...

6. Left axis deviation - Wikipedia

   en.wikipedia.org/wiki/Left_axis_deviation

   The hexaxial reference system is a diagram that is used to determine the heart's electrical axis in the frontal plane.. In electrocardiography, left axis deviation (LAD) is a condition wherein the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between −30° and −90°.

7. Automated ECG interpretation - Wikipedia

   en.wikipedia.org/wiki/Automated_ECG_interpretation

   The manufacturing industries of ECG machines is now entirely digital, and many models incorporate embedded software for analysis and interpretation of ECG recordings with 3 or more leads. Consumer products, such as home ECG recorders for simple, 1-channel heart arrhythmia detection, also use basic ECG analysis, essentially to detect ...

8. Arnold Schwarzenegger just got a pacemaker. Here's what to ...

   www.aol.com/lifestyle/arnold-schwarzenegger-just...

   The computer determines when the heart needs a jolt to get back on rhythm and delivers the electrical impulses back through the wires to the electrode, stimulating the heart muscle to contract.

9. Cardiac function curve - Wikipedia

   en.wikipedia.org/wiki/Cardiac_function_curve

   The horizontal axis of Guyton diagram represents right atrial pressure or central venous pressure, and the vertical axis represents cardiac output or venous return. The red curve sloping upward to the right is the cardiac output curve, and the blue curve sloping downward to the right is the venous return curve. A steady state is formed at the ...