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CHAPTER 8

Normal Sinus Rhythm

Objectives

At the end of this chapter, the student should be able to:

  1. After reading the Beginner’s Perspective for this chapter, defend the importance of normal sinus rhythm as being the most important rhythm to understand. (p 118)
  2. Discuss the concept of the sinus rhythm family; include similarities, differences, and points of origin. (pp 119120)
  3. Associate and describe the transmission of the depolarization wave through the heart, the electrical conduction system, and the formation of the ECG complex. (pp 120125)
  4. List the events occurring within the PR interval. (p 122)
  5. Describe the absolute and relative refractory periods and discuss their connection to additional arrhythmia formation. (pp 125, 126)
  6. List the three main categories of regularity as they pertain to arrhythmias. (p 127)
  7. Discuss the clinical and diagnostic significance of an irregularly irregular rhythm. (pp 128129)
  8. Accurately identify a normal sinus rhythm on a rhythm strip or ECG. (pp 131135)