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Answer the following questions related to the cardiac cycle and lead placement. 1.Describe the purpose of...

Answer the following questions related to the cardiac cycle and lead placement.

1.Describe the purpose of the electrocardiogram.

2.List the placement of the ten leads.

3.Describe how to prepare the patient for an electrocardiogram.

4.Where does the heartbeat originate?

5.Describe the cardiac cycle.

6.Define depolarization and repolarization.

7.Define systole and diastole.

8.What does the P wave represent?

9.What does the QRS complex represent?

10.What does the T wave represent?

11.What is an artifact related to the ECG?

12.Describe how to correct a poor quality ECG,
wandering baseline, and interference/artifact.

13.List three possible reasons for an abnormal ECG.

14.Explain what is meant by sinus rhythm, sinus tachycardia, and sinus bradycardia.

15.Each large square on the ECG paper represents _______; therefore there are ________ large squares to a _____________ and ________ to a minute.

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