15 Answers to End-of-Chapter Review Questions CHAPTER 1 1. 60 and 100 bpm 2. Positive 3. Negative 4. Negative 5. Anterior and posterior 6. Atrioventricular node 7. Purkinje fibers 8. QRS complex 9. Automaticity 10. High right atrium CHAPTER 2 1. 120 to 200 milliseconds 2. 80 to 120 milliseconds 3. Less than 440 to 460 milliseconds 4. Ventricular arrhythmias 5. QT interval 6. J point 7. Bradycardia 8. Apex of the T wave 9. 160 milliseconds 10. 80 milliseconds CHAPTER 3 1. I, II, and III 2. aVR, aVL, and aVF 3. II and III 4. I and III 5. I and II 6. Positive 7. Negative 8. V4 9. Lead II 10. I + III = II CHAPTER 4 1. 60 and 100 bpm 2. 40 and 60 bpm 3. 20 and 40 bpm 4. 36 bpm, ventricles 5. 50 bpm, sinus node 6. 90 bpm CHAPTER 5 1. Regular 2. Irregularly irregular 3. Irregular, P waves 4. Atrial bigeminy 5. Decrease 6. Premature ventricular contractions 7. Wide CHAPTER 6
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