Advanced Health Assessment Practice Exam

What defines a vesicle in dermatological terms?

1. Elevated cavity containing free fluid, up to 1 cm

2. Solid mass larger than 1 cm

3. Irregular and cystic

4. A flat, color change in the skin

The correct answer is: Elevated cavity containing free fluid, up to 1 cm

A vesicle, in dermatological terms, is defined as an elevated cavity that contains free fluid and is typically less than 1 cm in diameter. This is a key characteristic that helps differentiate vesicles from other dermatological formations. Vesicles are usually filled with clear fluid and can be seen in various conditions, such as herpes simplex virus infections or contact dermatitis. Their small size and fluid-filled nature make them distinct, as opposed to other skin lesions that may be solid, larger, or flat. Understanding this definition is crucial for accurate diagnosis and assessment in clinical practice.