Basic Dysrhythmia Test Questions And Complete Answers Graded A+ 2024.

SA node - Answer 60-100 bpm/ located in upper right atrium Av Node - Answer 40-60 BPM Ventiricle depolarization - Answer 20-40 BP P wave - Answer atrial depolarization PR interval - Answer represents AV conduction time-- .12-.20 QRS - Answer ventricle depolarization; QRS interval=.12 ST segment - Answer used to further describe a rhythm: ventricle is still depolarized, should be at baseline -if depressed think of Mischemia , elevated = acute Myocardial injury QT interval - Answer .44 1500 Method of figuring out heart rate - Answer count the number of small squares between identical points on consecutive R waves* divid 1500 by the number of small squares=rate Sinus Rhythms - Answer Normal Sinus: 60-100 BPM Sinus Brady: 60BPM Sinus Tachy: 100BPM