ECG ECG Lead Placement and Equipment

Question 1

Where is the V1 precordial lead electrode placed?

Accepted Answer

4th intercostal space, right sternal border

Answer

5th intercostal space, left midclavicular line

Answer

4th intercostal space, left sternal border

Answer

2nd intercostal space, right sternal border

Question 2

Which color is the right arm (RA) lead wire in standard US ECG color coding?

Accepted Answer

White

Answer

Black

Answer

Red

Answer

Green

Question 3

The V4 precordial lead is placed at which location?

Accepted Answer

5th intercostal space, midclavicular line

Answer

4th intercostal space, left sternal border

Answer

5th intercostal space, anterior axillary line

Answer

6th intercostal space, midaxillary line

Question 4

What is the standard paper speed used for ECG recordings in the US?

Accepted Answer

25 mm/sec

Answer

50 mm/sec

Answer

10 mm/sec

Answer

100 mm/sec

Question 5

Which lead is considered the ground lead in a standard 12-lead ECG setup?

Accepted Answer

Right leg (RL)

Answer

Left leg (LL)

Answer

Left arm (LA)

Answer

V6

Question 6

V6 is placed at which anatomical position?

Accepted Answer

5th intercostal space, midaxillary line

Answer

5th intercostal space, anterior axillary line

Answer

4th intercostal space, midaxillary line

Answer

6th intercostal space, midclavicular line