CHAPTER 35 OF RELIAS BASIC DYSRHYTHMIAS -ACTUAL EXAM WITH VERIFIED SOLUTIONS Normal Sinus Rhythm - CORRECT ANSWER -60-100 bpm all complexes normal and evenly spaced (P, QRS, T) Sinus Bradycardia - CORRECT ANSWER -< 60 bpm with normal sinus rhythm Sinus Tachycardia - CORRECT ANSWER -101-200 bpm with normal sinus rhythm Premature Atrial Contraction (PAC) - CORRECT ANSWER -60-100 bpm w/irregular rhythm; abnormal P wave, normal PR interval & QRS complex Paroxysmal Supraventricular Tachycardia (PSVT) - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT ANSWER -normal & regular rhythm; normal P wave, >0.20 sec PR interval, normal QRS complex 2nd Degree AV Block Type I (Mobitz 1, Wenckebach) - CORRECT 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) - CORRECT 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 w aves
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