Which Precordial Electrode Is Placed in the Fourth Intercostal Space

question 87

Multiple Choice

Which precordial electrode is placed in the fourth intercostal space to the left of the sternum?

• A) V₆
• B) V₁
• C) V₄
• D) V₂
• E) V₃

---

Definitions:

Contribution Margin

Contribution margin is the difference between sales revenue and variable costs of a product or service, highlighting how much revenue contributes towards covering fixed costs and generating profit.

Fixed Manufacturing Overhead

The portion of manufacturing overhead costs that remains constant regardless of the level of production, such as salaries of supervisors and rent of the factory.

Outside Supplier

An external company or individual that provides goods or services to another company.

Contribution Margin

The amount by which sales revenue exceeds variable costs, indicating how much revenue contributes towards covering fixed costs and generating profit.