Which term indicates a bruise that may or may not be raised on the skin surface?

• A. Crepitus
• B. Contusion
• C. Myalgia
• D. Erythema

Answer: (B)

The term that indicates a bruise, which can present as either flat or slightly raised on the skin surface, is "contusion." It is a medical term that specifically refers to an injury to the tissues beneath the skin caused by blunt force or trauma, resulting in localized bleeding. This internal bleeding can give the skin a discolored appearance, typically presenting in shades of purple, blue, or green, depending on the stage of healing.

In contrast, crepitus refers to a crackling or popping sound or sensation typically associated with bone or joint movement, and myalgia denotes muscle pain, which is unrelated to bruising. Erythema refers to redness of the skin due to increased blood flow, often as a result of inflammation or irritation, but does not imply the presence of a bruise. Therefore, "contusion" is the most accurate term to describe this specific type of injury involving bruising.