| Question | Answer |
| Premature Atrial Contraction (PAC) | Rhythm: Irregular
Rate: varies
P-wave: Premature, abnormal shape
PR: Normal
QRS: Usually normal
Premature P-wave with a narrow QRS. P-wave may be hidden in T-wave. |
| Ventricular Tachycardia (V-Tach) | Rhythm: Regular
Rate: Fast
P-wave: Usually not visible
PR: unmeasurable
QRS: Wide and distorted
Wide complex, over 0.12, no visible P-wave, complexes look like PVC. |
| Sinus Bradycardia | Rhythm: Regular
Rate: <60
P-wave: Present
PR: 0.12-0.20
QRS: 0.04-0.10
Everything normal but rate is slow |
| Atrial Flutter | Rhythm: Regular
Rate: 250-400, extremely fast
P-wave: Abnormal
PR: unmeasurable
QRS: usually normal
This strip's p-wave has a sawtooth appearance. Think of a butterfly fluttering it's wings. |
| 2nd Degree AV Block Type II | Rhythm: Regular
Rate: Slow
P-wave: present, too many
PR: normal or prolonged
QRS: Wide
P-waves with out QRS. Pattern does not repeat. |
| Ventricular Fibrillation (V-Fib) | Rhythm: irregular
Rate: ?
P-Wave: none
PR: None
QRS: None
This is a squiggly line on the strip. Can be a fine or course line. Usually follows R on T. |
| Asystole | Flat line, no beating heart. |
| 2nd Degree AV Block Type I (Wenchebach or Mobitz I) | Rhythm: Irregular
Rate: normal or slow
P-wave: present but too many
PR: gets progressively longer
QRS:normal
This is recognized by P-waves with no QRS. The PR interval repeats it's self. |
| Sinus Tachycardia | Rhythm: Regular
Rate: >100
P-Wave:Present
PR: 0.12-0.20
QRS: 0.04-0.10
Everything is normal but rate is fast. |
| Premature Junctional Contractions (PJC) | Rhythm: Irregular when PJC occur
Rate:
P-wave: inverted or absent
PR: Shortened
QRS:Normal
P-wave may occur before, during or after QRS. May also be absent or inverted. |
| Normal Sinus Rhythm | Rhythm: Regular
Rate: 60-100
P wave: Present
PR: 0.12-0.20
QRS: 0.04-0.10
Everything is normal. |
| Sinus Dysrhythmia | Rhythm: Irregular
Rate: 60-100
P-wave: Present
PR: 0.12-0.20
QRS: 0.04-0.10
Everything is normal except the rhythm. |
| 1st Degree AV Block | Rhythm: Regular
Rate: Normal or bradycardia
P-wave: normal
PR: Prolonged
QRS: Normal
Everything is normal except for the prolonged PR interval. |
| Paroxysmal Atrial Tachycardia (PAT) | Rhythm: Regular
Rate: 150-250
P-wave: not visible
PR: unmeasurable
QRS: narrow
No visible P-wave because of the fast rate. |
| Idioventricular Rhythm (Dying Heart) | Rhythm: Regular
Rate: slow, and slowing
This is a patient heart that is slowing to stop. CPR required if no DNR |
| Atrial Fibrillation (A-Fib) | Rhythm: Irregularly irregular
Rate:extremely fast, above 400
P-wave: absent
PR:unmeasurable
QRS:usually normal
No visible P-wave. |
| Paroxysmal Junctional Tachycardia | Rhythm: Regular
Rate: 150+
P-wave: None
PR: None
QRS:Normal
This is a cluster of 3 or more PJC. Same rules as PJC |
| Junctional Escape | Rhythm: Irregular
Rate:
P-wave:
PR:
QRS: normal
This has periods of flat line. |
| Premature Ventricular Contraction (PVC) | Rhythm: Regular or Irregular
Rate: Fast
P-wave: Hidden
PR: none
QRS: Wide
Premature, wide complex no proceeding P-wave. |
| 3rd Degree AV Block (Total Heart Block) | Rhythm:Regular
Rate: normal or slow
P-wave: present but may be buried in the QRS
PR: unmeasurable
QRS: Long, wide
The space between R-R will be the same, as will P-P. No pattern |
