ECG ECG Lead Placement and Technique 2 — Questions and Answers
Question 1: Where is the V1 precordial electrode correctly placed?
- 4th intercostal space, right sternal border (Correct answer)
- 4th intercostal space, left sternal border
- 5th intercostal space, midclavicular line
- 5th intercostal space, anterior axillary line
Correct answer: 4th intercostal space, right sternal border
V1 is placed in the 4th intercostal space at the right sternal border.
Question 2: Which lead is placed in the 5th intercostal space at the midclavicular line?
- V2
- V3
- V4 (Correct answer)
- V5
Correct answer: V4
V4 sits in the 5th intercostal space at the midclavicular line.
Question 3: Lead V6 should be positioned at which anatomical landmark?
- Anterior axillary line
- Midaxillary line (Correct answer)
- Posterior axillary line
- Midclavicular line
Correct answer: Midaxillary line
V6 is placed at the midaxillary line, level with V4 and V5.
Question 4: The correct order to place V3 is:
- Before V1 and V2
- Between V2 and V4 (Correct answer)
- After V6
- Same spot as V5
Correct answer: Between V2 and V4
V3 is placed midway between V2 and V4.
Question 5: Where is the V2 electrode placed?
- 4th intercostal space, right sternal border
- 4th intercostal space, left sternal border (Correct answer)
- 5th intercostal space, left sternal border
- 3rd intercostal space, left sternal border
Correct answer: 4th intercostal space, left sternal border
V2 sits in the 4th intercostal space at the left sternal border.
Question 6: V5 is placed at which line, level with V4 and V6?
- Midclavicular line
- Anterior axillary line (Correct answer)
- Midaxillary line
- Posterior axillary line
Correct answer: Anterior axillary line
V5 is located at the anterior axillary line, horizontal to V4 and V6.
Question 7: Which intercostal space is used as the starting landmark for locating V1?
- 2nd
- 3rd
- 4th (Correct answer)
- 5th
Correct answer: 4th
The 4th intercostal space is the reference for V1 and V2 placement.
ECG ECG Lead Placement and Technique 2
Where is the V1 precordial electrode correctly placed?