Michigan Esthetician State Board Practice Exam

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What is a fluid created by infection?

Serum
Pus
Exudate
Fluid

The correct answer is: Pus

Pus is a thick fluid that is produced at the site of an infection. It consists of dead white blood cells, bacteria, and tissue debris, and is a result of the body's immune response to infection. When the body detects an invading pathogen, immune cells are sent to the area to combat the infection, and the accumulation of these cells, dead bacteria, and necrotic tissues forms pus. Understanding the nature of pus is essential in esthetics, as it can indicate an ongoing infection that may require special care or avoidance during skin treatments to prevent further complications or the spread of infection. In clinical practice, recognizing pus can help estheticians make informed decisions about client care and appropriate treatments. While serum is a component of blood that remains after blood clots and exudate refers to fluid that leaks out of blood vessels into nearby tissues in response to inflammation and tissue damage, these do not specifically denote the presence of infection in the same way that pus does.