Question

For what purpose would a health-care professional use a Wood’s lamp for a suspected case of ringworm?

a) To measure temperature
b) To detect fluorescence of affected skin
c) To assess blood pressure
d) To examine the ear canal

Answer 1

A Wood's lamp is used by health-care professionals to detect fluorescence of affected skin in cases of suspected ringworm, aiding in the diagnosis of fungal infections.

Step-by-step explanation:

The primary use of a Wood's lamp by a health-care professional in cases of suspected ringworm is b) to detect fluorescence of affected skin. This specialized type of ultraviolet light is effective for highlighting fungal elements, such as spores and hyphae, which fluoresce under its illumination. This diagnostic process helps clinicians swiftly identify the presence of fungal infections on the skin, thus facilitating accurate treatment.

Ringworm is a common fungal condition that presents as a red, itchy, circular rash. The fungus responsible is typically a species of Trichophyton, which can be identified under a microscope or by culturing specimens on Sabouraud's agar. Positive identification is key for effective treatment, which often involves antifungal creams or medications.