Cardiac EKG Rhythms(2025/2026)

EKG Rhythm Monitoring (Piedmont SG)
1. Rhythm: Regular or Irregular
2. Rate: bpm
3. P wave: - present
- regular
- p for every qrs
- appearance
- positive/ negative
4. PR Interval: Length (0.12-0.20 sec Normal) aka 3-5 small blocks

>0.20 sec is a BLOCK
5. QRS complex: - appearance
- (0.06-0.12) Normal (<3 small boxes)
- anything >0.12 sec is a BBB
6. Atrial Arrhythmias: Rhythms that originate in areas outside the SA Node (due
to irritability/ excitability somewhere in the intra-atrial pathway)
7. Premature Atrial Contraction (PAC): -rate: 10-100
- rhythm: irregular
-p wave: pointed and lost in preceding t wave
- pr interval (sec): normal
- qrs (sec): normal
8. Junctional Arrhythmias: rhythms originating in a AV junction (the SA node is
suppressed and fails to conduct impulses or a block occurs in conduction; electrical
impulses are then initiated by pacemaker cells in AV junction)
9. Junctional rhythm: -rate: 40-60

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, -rhythm: regular
- p wave: inverted
- PR interval (sec): short (since inverted)
- QRS (sec): normal
10. Junctional Bradycardia/ escape: -rate: 40-60
-rhythm: regular until escape occurs
-pwave: inverted
-PR interval: normal
-QRS (sec): normal
11. Accelerated Junctional: -rate: 60-100
-rhythm: regular
-pwave: inverted, absent, or after QRS
-PR interval: normal
-QRS (sec): normal




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