Exam

Electrocardiogram Validity

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Electrocardiogram Validity, EKG Validity

  • Criteria
  • EKG Validity
  1. Limb Lead I is mirror of aVR
  2. R Wave progression across precordial leads
    1. R Wave more prominent by lead V4
    2. Poor progression in anterior Myocardial Infarction
  3. Voltage standardization mark at 1 mv
    1. Two big boxes tall (10 mm)
    2. Five small boxes wide (25 mm/sec)