Based on the image showing the placement of ECG electrodes, where should the V1 lead be placed?

Question

Question

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AIIMS NORCET 7 Prelims Memory Based Paper 2024

Answer 1

Correct Answer: 4th intercostal space, right sternal edge

Rationale:

The V1 lead in an ECG is placed at the 4th intercostal space, right sternal edge. This specific placement is critical for obtaining accurate readings of the electrical activity of the heart, particularly the right ventricle.
The ECG (Electrocardiogram) is a diagnostic tool used to assess the electrical and muscular functions of the heart. Proper electrode placement ensures that the recorded signals accurately represent the heart's electrical activity.

Explanation of Other Options:

5th intercostal space, mid-clavicular line

Rationale: This is the correct placement for the V4 lead, not the V1 lead. The V4 lead is placed in the 5th intercostal space at the mid-clavicular line and is crucial for observing the anterior wall of the heart.

Mid-axillary line in a straight line with V4 and V5

Rationale: This describes the placement for the V6 lead. V6 is positioned on the mid-axillary line at the same horizontal level as V4 and V5, and is used to view the lateral wall of the left ventricle.

4th intercostal space, left sternal edge

Rationale: This is the placement for the V2 lead, not the V1 lead. V2 is placed in the 4th intercostal space but on the left sternal edge, and it helps in viewing the septal region of the heart.

Conclusion:

Proper placement of ECG leads is essential for accurate diagnosis and monitoring of cardiac conditions. Each lead has a specific anatomical location to capture precise electrical activity. The V1 lead is correctly placed at the 4th intercostal space, right sternal edge, aiding in the assessment of the right side of the heart.