Which of the following is a CORRECT placement of V1 ECG lead?

Appeared in: NORCET-7 Mains-2024

Explanation

The V1 lead is one of the six precordial (chest) leads in a standard 12-lead ECG.
Its correct anatomical landmark is the fourth intercostal space (ICS).
The electrode should be placed just to the right of the sternum (right sternal border).
This position allows for the monitoring of electrical activity from the right ventricle and septum.

Visual 1: Diagram - An illustration of the human torso showing the precise anatomical locations for all six precordial leads (V1-V6), with the ribs, sternum, and clavicle clearly marked as reference points.
Visual 2: Table - A summary table listing each of the 12 ECG leads (limb and precordial) and their corresponding standard placements.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Standard 12-Lead ECG Precordial Lead Placement as background academic context rather than a clinical decision trigger.
Accurate lead placement is fundamental to ECG interpretation. Misplacing leads can create artifacts or mimic pathological patterns, leading to misdiagnosis.
For example, placing V1 and V2 leads too high (in the 2nd or 3rd ICS) is a common error that can produce a pattern resembling an anterior myocardial infarction (pseudo-infarction pattern).
Nurses are responsible for ensuring correct lead placement, proper skin preparation for good electrode contact, and patient comfort during the procedure.

How to Approach the Question

Identify the core question: The question asks for the specific anatomical location of the V1 ECG lead.
This is a factual recall question. Access your knowledge of standard ECG procedures.
Mentally visualize or recall the placement of the six precordial leads (V1-V6).
Evaluate each option against the standard placement for V1: Fourth ICS, right sternal border.
Option A is V2's location. Option B is V3's location. Option C is V4's location.
Option D correctly describes the placement of the V1 lead.

Concept Tested & Keywords

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