Advanced Arrhythmia Exam Prep
what does each small box represent - Answer- .04 seconds what does 1 large box (5 small boxes) represent - Answer- .20 seconds what do 5 large boxes represent - Answer- 1 second primary pacemaker - Answer- SA node w/expected firing rat of 60-100 bpm backup pacemaker - Answer- AV node w/expected firing rate of 40-60 bpm final pacemaker - Answer- ventricles w/expected firing rate less than 40 bpm a normal PR interval is - Answer- .12-.20 seconds a normal QRS interval is - Answer- .12 seconds (.04-.11) a normal QT interval is - Answer- .36-.44 seconds the ST segment should be ____ with the _____ - Answer- level w/ the baseline ST segment elevation and depression is an indication of - Answer- ischemia or injury to the heart what does P wave represent on the ECG - Answer- atrial depolarization what does P wave represent on the ECG - Answer- ventricular depolarization what does P wave represent on the ECG - Answer- repolarization of ventricles rhythms that originate above the ventricles normally have a ___ QRS complex - Answer- narrow QRS complex rhythms that originate in the ventricles normally have a ___ QRS complex - Answer- wide QRS complex A Flutter - Answer- rate: 250 - 350 bpm HR varies!! regularity: regular or irregular P waves: "think of a shark fin or waves" PR: not applicable - you don't measure it QRS:
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