Measuring axis

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Headshot of Chris Anderson, MD · Clinical Education Director, Pediatrics
Chris Anderson
MD · Clinical Education Director, Pediatrics
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32-min read

In this video (scrub through the video to see chapters)

  • 0:50 The “vector” for the heart’s activity
  • 03:24 The chest (precordial) leads
  • 04:18 The vectors for the frontal plane leads
  • 10:10 Determining axis: Method 1 (more precise)
  • 12:38 Measuring axis: Method 2 (less precise)
  • 15:18 P Wave axis
  • 19:39 QRS axis