Milady Esthetics State Board Practice Test

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Prepare for the Milady Esthetics State Board Test. Study with comprehensive questions and insightful explanations. Ace your exam with confidence!

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A Wood's lamp uses which type of light?

Filtered blue light
Filtered black light
Filtered red light
Filtered green light

The correct answer is: Filtered black light

A Wood's lamp utilizes filtered black light, which is effectively ultraviolet (UV) light that has been filtered to limit the wavelength range, making it safe for skin examination. This type of light is particularly beneficial in esthetics because it allows practitioners to assess skin conditions by illuminating areas of pigmentation, oiliness, and other skin concerns that are not visible under regular lighting. When the Wood's lamp is used on the skin, various conditions can show up in different colors. For example, certain types of pigmentation may glow, helping estheticians identify issues such as sun damage, fungal infections, or underlying skin conditions. The UV component assists in revealing these details that would otherwise remain hidden, thereby facilitating more accurate diagnoses and treatment plans. The other choices listed do not accurately represent the light emitted by a Wood's lamp. Filtered blue, red, or green light does not possess the specific properties necessary for effective skin analysis as indicated by the use of black light in this device.