Exam (elaborations)
DYSRHYTHMIAS EXAM QUESTIONS AND ANSWERS
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DYSRHYTHMIAS EXAM QUESTIONS AND ANSWERS
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DYSRHYTHMIAS EXAM QUESTIONSAND ANSWERS
Normal Sinus Rhythm - Answer-60-100 bpm
all complexes normal and evenly spaced (P, QRS, T)
Sinus Bradycardia - Answer-< 60 bpm with normal sinus rhythm
Sinus Tachycardia - Answer-101-200 bpm with normal sinus rhythm
Premature Atrial Contraction (PAC) - Answer-60-100 bpm w/irregular rhythm; abnormal
P wave, normal PR interval & QRS complex
Paroxysmal Supraventricular Tachycardia (PSVT) - Answer-150-220 bpm w/regular
rhythm; abnormal P wave (may be hidden in preceding T wave), normal/shortened PR
interval, normal QRS complex
Atrial Flutter - Answer-200-350 bpm w/irregular rhythm; ventricular rhythm < or > 100
bpm w/irregular rhythm; fluttering (sawtooth) P waves, nonmeasurable PR intervals,
normal QRS complex
Atrial Fibrillation - Answer-350-600 bpm w/irregular rhythm; ventricular rhythm < or >
100 bpm w/irregular rhythm; fibrillatory P waves, nonmeasurable PR intervals, normal
QRS complex
Junctional Dysrhythmias - Answer-40-180 bpm w/regular rhythm; inverted (may be
hidden in QRS) P waves, shortened PR intervals, normal QRS complex
First Degree AV Block - Answer-normal & regular rhythm; normal P wave, >0.20 sec PR
interval, normal QRS complex
2nd Degree AV Block Type I (Mobitz 1, Wenckebach) - Answer-Atrial: normal & regular
rhythm, Ventricular: slower & irregular rhythm; normal P wave, progressive lengthening
PR interval, normal QRS complex w/pattern of one blocked (nonconducted) QRS
2nd Degree AV Block Type II (Mobitz 2) - Answer-Atrial: usually normal & regular
rhythm, Ventricular: lower & regular/irregular rhythm; more P waves than QRS
complexes, inconsistent PR interval, normal/widened QRS complexes & no relationship
w/ P waves
3rd Degree AV block (complete) - Answer-Atrial: regular but may appear irregular due to
P waves hidden in QRS complex, Ventricular: 20-60 bpm & regular rhythm; normal P
waves (no connection with QRS complex), inconsistent PR interval, normal/widened
QRS complex w/ no relationship w/P waves
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