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Mayo Clinic EKG Review Exam Questions With Correct Answers

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Mayo Clinic EKG Review Exam Questions With Correct Answers

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Mayo Clinic EKG Review Exam Questions
With Correct Answers

What |is |the |purpose |of |ECG? |- |CORRECT |ANSWER✔✔-Measures |electrical |physiology |of |the |
heart, |rate/rhythm, |and |electrical |activity.



The |pacemaker |site |within |the |________ |generally |controls |the |heart. |- |CORRECT |
ANSWER✔✔-Atria



The |sympathetic |nervous |system |___________ |heart |rate, |conduction, |and |irritability. |- |
CORRECT |ANSWER✔✔-INCREASES



The |parasympathetic |nervous |system |___________ |heart |rate, |conduction, |and |irritability. |- |
CORRECT |ANSWER✔✔-DECREASES



PR |Interval |- |CORRECT |ANSWER✔✔-0.12-0.20, |3-5 |small |boxes



QRS |Complex |- |CORRECT |ANSWER✔✔-< |0.12, |3 |small |boxes



QT |Interval |- |CORRECT |ANSWER✔✔-0.35-0.43



Refractory |Period |- |CORRECT |ANSWER✔✔-2nd |half |of |T |wave, |where |impulses |get |through



Large |Square |Method |- |CORRECT |ANSWER✔✔-# |of |big |squares |between |two |R |waves, |divided
|into |300

, Small |Square |Method |- |CORRECT |ANSWER✔✔-# |of |small |squares |between |two |R |waves, |
divided |into |1500



Sinus |Bradycardia |- |CORRECT |ANSWER✔✔-Regular

<60BPM

Uniform |P |Waves

PR |= |0.12-0.20

QRS |= |<0.12



Normal |Sinus |- |CORRECT |ANSWER✔✔-Regular

60-100 |BPM

Uniform |P |Waves

PR |= |0.12-0.20

QRS |= |<0.12



Sinus |Tachycardia |- |CORRECT |ANSWER✔✔-Regular

>100 |BPM

Uniform |P |Waves

PR |= |0.12-0.20

QRS |= |<0.12



Sinus |Arrhythmia |- |CORRECT |ANSWER✔✔-Irregular

Roughly |60-100 |BPM



PJC |- |CORRECT |ANSWER✔✔-Regular |or |Irregular

Rate |depends |on |preexisting |rhythm

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