Certification in Infection Prevention and Control (CIC) Practice Exam

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What is the term for an elevated superficial lesion filled with purulent fluid?

Papule

Nodule

Pustule

The term for an elevated superficial lesion filled with purulent fluid is known as a pustule. Pustules are small blisters or bumps on the skin that contain pus, which is a thick fluid made up of white blood cells, bacteria, and dead skin. They often appear red at the base and can vary in size. This is commonly associated with inflammatory skin conditions such as acne, where the accumulation of pus indicates an infection or inflammation.

In contrast, a papule is typically a small, raised, solid pimple or swelling often without a fluid-filled center, and a nodule is a larger, deeper, solid lesion that can extend into the skin's layers. Atrophy refers to thinning or loss of skin tissue, which does not involve the presence of pus. Understanding these distinctions is essential for proper diagnosis and treatment in infection prevention and control contexts.

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Atrophy

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