BASIC DYSRHYTHMIA REVIEW STUDY GUIDE #5

BASIC DYSRHYTHMIA REVIEW STUDY GUIDE #5

1. normal sinus rhythm (NSR) Criteria: (PR, QRS, QT, Rhythm: reg or irreg):
1 P-wave for Every QRS, REGULAR rhythm
PR: 0.12-0.20
QRS: 0.06-0.10 BBB = > 0.12
QT: 0.36-0.44
BPM: 60-100
2. Sinus Bradycardia Criteria: (PR, QRS, QT, Rhythm: reg/irreg): PR: 0.12-
0.20 QRS: 0.06-0.10
QT: 0.36-0.44
BPM: < 60 (Reg. rate)
Tx: Atropine 0.5mg, Pace, Dopamine 2-10 mcg/kg/min, Epie 2-10
mcg/min
3. Sinus Tachycardia Criteria: (PR, QRS, QT, Rhythm: reg/irreg): PR: 0.12-
0.20 QRS: 0.06-0.10
QT: 0.36-0.44
BPM: 100-150 (Reg. rate, P wave may merge with T-
wave) Cause: fear, anxiety, hypoxia, sepsis,
hypovolemia, infection
4. Sinus Arrhythmia Criteria: (PR, QRS, QT, Rhythm: reg/irreg): PR: 0.12-
0.20 QRS: 0.06-0.10
QT: 0.36-0.44
BPM: HR increase w/ inspiration, HR decrease
w/expiration P-P interval lengthen and shorten with
respirations
Irreg
Rhythm
NO TX
5. Sinus Pause Criteria: (PR, QRS, QT, Rhythm): PR: 0.12-
0.20 QRS: 0.06-0.10
QT: 0.36-0.44
Irregular rhythm
Short Pause: no TX; Long/Freq. Pause & symptomatic = TX like Sinu
Brady
6. Premature Atrial Contraction (PAC): Heart Rate: Depends on
underlying rhythm
Regularity: Interrupts the regularity of underlying rhythm
P-Wave: can be flattened, notched, or unusual. May be the T
hidden within PRI: measures between .12-.20 seconds and wave be
can be prolonged; can from other complexes different
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, BASIC DYSRHYTHMIA REVIEW STUDY GUIDE #5

QRS: <.12 seconds
TX: none, check Lytes, precursor for A-Fib/Flutter
7. Atrial Fibrillation (A-Fib) (PR, QRS, QT, RHYTHM, TX): PR: Can't Measure
*NO P WAVE*
QRS: 0.06-0.10




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