1. Bundle of HIS Connects AV node to bundle branches
2. Normal Junction- 40-60 bpm
al Rhythm (intrin- - P waves:
sic rate) o Inverted
>>Before the QRS complex
>>After the QRS complex (retrograde conduction)
o Absent (buried inside of the QRS complex)
3. SA Node primary pacemaker of the heart
4. AV Node - Delays impulse from atria
- back up pacemaker
5. SA intrinsic rate 60-100 bpm
6. Vent Intrinsic 20-40 bpm
rate
7. Sinus Bradycar- <60 bpm
dia
8. Junction Brady- <40 bpm
cardia
9. Accel IVR 41-100 bpm
10. Vent Issues Wide QRS
11. Atrial Issues Normal or Narrow QRS
12. Sinus Tachycar- 101-159
dia
, ECG Mayo
13. Accel Junction 61-100
Rhythm
14. junctional tachy- 101-159
cardia
15. Ventricular 101-250
tachycardia
16. P Wave atrial depolarization
17. PR Interval Represents atrial depolarization and AV delay
- round and upright
18. Normal PRI 0.12-0.20 seconds
19. QRS complex ventricular depolarization
20. Normal QRS 0.04- 0.12 seconds
21. ST Segment
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