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The ECG Course Adam Thompson, EMTP, BAS Chapter 7 Sinus Rhythms

Ch 7 sinus rhythms

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The ECG Course

Adam  Thompson,  EMT-­‐P,  BAS  

Chapter  7  Sinus  Rhythms  

Sinus Rhythms

Normal Sinus Rhythm

•  Rate:  60  -­‐  100  bpm  •  Rhythm:  Regularly  Regular  •  P  wave:  Present  •  P:QRS  raFo:  1  to  1  •  PR-­‐interval:  Normal  •  QRS  Width:  <  120  ms  (0.12  sec)  

Sinus Arrhythmia

•  Rate:  60  -­‐  100  bpm  •  Rhythm:  Varies  with  respiraFon  •  P  wave:  Present  •  P:QRS  raFo:  1  to  1  •  PR-­‐interval:  Normal  •  QRS  Width:  <  120  ms  (0.12  sec)  

Sinus Bradycardia

•  Rate:  <  60  bpm  •  Rhythm:  Regularly-­‐Regular  •  P  wave:  Present  •  P:QRS  raFo:  1  to  1  •  PR-­‐interval:  Normal  •  QRS  Width:  <  120  ms  (0.12  sec)  

Sinus Tachycardia

•  Rate:  >  100  bpm  •  Rhythm:  Regularly-­‐Regular  •  P  wave:  Present  •  P:QRS  raFo:  1  to  1  •  PR-­‐interval:  Normal  •  QRS  Width:  <  120  ms  (0.12  sec)  

Sinus Pause/Arrest

•  Rate:  Varies  •  Rhythm:  Irregular  •  P  wave:  Present  except  for  pause  •  P:QRS  raFo:  1  to  1  •  PR-­‐interval:  Normal  •  QRS  Width:  <  120  ms  (0.12  sec)  

Sinus Block

•  Rate:  Varies  •  Rhythm:  Regularly  -­‐  Irregular  •  P  wave:  Present  except  for  “dropped  beat”  •  P:QRS  raFo:  1  to  1  •  PR-­‐interval:  Normal  •  QRS  Width:  <  120  ms  (0.12  sec)  

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

Sinus Rhythms

The ECG Course [email protected]

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