Quick Study Index, Module 2

Number of Components (Table 1)

Heart's Major Function (Table 2)

Heart Really two Pumps (Table 3)
SA Node - Leading Pacemaker (Figure 1)

Intrinsic Firing Rate (Table 6)
Wave of Depolarization (Figure 2)

Conduction Rate (Table 4)

Einthoven Triangle (Figure 3)

Three Assumptions (Table 7)
Dipole (Figure 4)

Dipole action (Table 8)

The Different Lead Systems (Table 13)

  • Three Standard Bipolar Limb Leads (Figure 11)
  • Three Unipolar Augmented Limb Leads (Figure 12)
  • Precordial Leads (Figure 13)
    Normal ECG - Definitions (Figure 5)

    ECG - Waves (Table 9)

    ECG - Intervals (Table 10)
    Depolarization of the Heart (Figure 7)

    5 Phases of Heart Depolarization (Table 11)

    Depolarization moves from Endocardium to Epicardium (Table 12)
    Comparing Two ECGs: Sedentary vs. Athlete (Figure 8)

    Examining an ECG: Sequence of Waves (Table 16)

    Examining an ECG: Amplitude and Shape (Table 17)

    Examining an ECG: Mean Electrical Axis (Table 18)

  • Determining Heart Rate: Method 1 (Table 19)
  • Determining Heart Rate: Method 2 - "Quick & Dirty" (Table 20)

  • Determining Heart Rate: Method 3 (Table 21)

    Sinus Rhythm (Table 22)

    Determination of Mean Electrical Axis - "Quick & Dirty" (Table 18)

  • Accurately Determining Mean Electrical Axis: Step 1 (Figure 9)
  • Accurately Determining Mean Electrical Axis: Step 2 (Figure 10)

    Causes of Axis Deviation (Table 23)


    - Cardiac Conditions as Seen by ECG:

    Sinus Rhythm (Figure 14)

    Bradycardia (Figure 15)

    First Degree Heart Block (Figure 16)

    Second Degree heart Block: Mobitz I (Figure 17)
    Third Degree Heart Block (Figure 21)

    Another Pattern in Third Degree Heart Block (Figure 22)

    Junctional Rhythm (Figure 18)

    Idioventricular Rhythm (Figure 19)

    Intraventricular Conduction Defect (Figure 20)

    Wandering Atrial Pacemaker (Figure 23)

    Atrial Flutter (Figure 24)

    Atrial Fibrillation (Figure 25)

    Ventricular Tachycardia (Figure 26)

    Ventricular Fibrillation (Figure 27)

    Hyperkalemia (Table 24)

    Hyperkalemia - Changes in ECG (Figure 28)


    Right above: Early Einthoven ECG machine - (Click here for a larger version of the graphic)



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