Utah Esthetician State Board Practice Exam

What does Photothermolysis refer to?

1. Destruction of skin cells

2. Selective photothermolysis in cosmetic procedures

3. Cooling of the skin

4. Inflammation of tissues

The correct answer is: Selective photothermolysis in cosmetic procedures

Photothermolysis is a term that describes the process of selectively targeting and destroying specific structures within the skin using focused light energy. In the context of cosmetic procedures, selective photothermolysis is particularly important because it refers to the ability to precisely target pigmentation, blood vessels, or hair follicles without causing damage to the surrounding healthy tissue. This technique is commonly used in laser treatments for hair removal, skin rejuvenation, and vascular lesions. This precision is key to achieving desired results while minimizing side effects. In cosmetic procedures, systems using photothermolysis can deliver energy in a way that allows for effective treatment of various skin concerns, providing safer and more effective solutions than non-selective methods. The other options do not encapsulate the essence of photothermolysis. For instance, the destruction of skin cells generally refers to a broader and non-selective process, which contrasts with the targeted approach of selective photothermolysis. Cooling of the skin and inflammation of tissues are physiological responses that can occur in various treatments but do not define the principle of selectively using light energy for skin treatment.