Cardiology In Critical Care
Arrhythmia Recognition
Sinus Pause (SP)
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| Heart Rate |
Rhythm | P Wave | PR Interval (in seconds) |
QRS (in seconds) |
|---|---|---|---|---|
| N/A | Irregular | Before each QRS, identical. Dropped beat. The P to P interval is undisturbed. | .12 to .20 | < .12 |