Week 3 - ECG Basics

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How is the P wave produced in an ECG?

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Atrial depolarisation

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How is the QRS complex produced in an ECG?

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ventricular depolarisation

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17 Terms

1
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How is the P wave produced in an ECG?

Atrial depolarisation

2
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How is the QRS complex produced in an ECG?

ventricular depolarisation

3
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How is the T wave produced in an ECG?

Ventricular repolarisation from apex to base and epicardium to endocardium

4
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What is the sequence of conduction that produces the P wave?

5
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What is the sequence of conduction which produces the QRS complex?

6
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What is the sequence of repolarisation that produces T wave?

7
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Why is atrial repolarisation not seen in a healthy ECG waveform?

8
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What type of deflection is produced when a wave of excitation heading toward the positive electrode?

Upward deflection

9
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What type of deflection is produced when a wave of repolarisation heading away from the positive electrode?

An upward deflection

10
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What type of deflection is produced when a wave of excitation heading away from the positive electrode?

A downward deflection

11
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What type of deflection is produced when a wave of repolarisation heading toward the positive electrode?

A downward deflection

12
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What is the isoelectric line?

13
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Which appendage has both positive electrodes in an ECG reading?

The left leg

14
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Which appendage has both negative electrodes in an ECG reading?

Right arm

15
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Where is lead 1?

Between the right and left arm

16
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Where is lead 2?

Between right arm and left leg

17
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Where is lead 3?

Between left arm and left leg