ECG Exam 2 Questions With 100% Correct Answers

ECG Exam 2 Questions With 100% Correct Answers ______________ and _____________ of atria and ventricles are electrical events the ECG detects - answerdepolarization and repolarization systematic process used to identify the characteristics of an ECG tracing - answerNine-Step Process distance of consecutive P waves is the same, as well as QRS complexes throughout tracing - answerRegular rhythm distances between consecutive P waves and/or QRS complexes differ - answerIrregular rhythm P wave - answer-initiation of impulse in SA node -depolarization of RA and LA -impulse passing through AV junction Represents movement of electrical impulse through ventricles, causing a contraction - answerQRS complex 1st negative deflection after PR segment - answerQ wave 1st positive deflection following Q wave - answerR wave Next negative deflection after R wave - answerS wave Represents depolarization of the heart from SA node through the atria, AV node and Purkinje system - answerPR interval Distance from beginning of P wave to beginning of Q wave - answerPR interval Flat line that follows QRS complex - answerST segment Follows ST segment - answerT wave Distance from onset of QRS complex until end of T wave - answerQT interval Irregularities in heart rate or rhythm - answerDysrhythmias HR < 60 BPM is called - answerbradycardia