ECG ECG Lead Placement and Technique 5

Question 1

For a right-sided ECG (V4R), where is the V4R electrode placed?

Accepted Answer

5th intercostal space, right midclavicular line

Answer

V4R mirrors V4 on the right side, in the 5th intercostal space at the right midclavicular line.

Question 2

Posterior leads V7, V8, and V9 are used primarily to detect:

Accepted Answer

Posterior wall MI

Answer

Posterior leads help identify posterior wall myocardial infarction.

Question 3

When performing a 12-lead ECG on a female patient, chest electrodes V4-V6 should be placed:

Accepted Answer

Under or below the left breast

Answer

Electrodes are placed beneath the breast to reach the correct intercostal spaces.

Question 4

For a patient with an amputated left arm, the LA electrode should be placed:

Accepted Answer

On the shoulder or upper trunk on that side

Answer

The electrode is placed on the residual limb or nearest trunk area on the same side.

Question 5

Which posterior lead is placed at the left midscapular line?

Accepted Answer

V8

Answer

V8 is positioned at the left midscapular line, level with V6.

ECG (Electrocardiogram) Practice Test