Diascopy, an enhancement technique useful in examining skin lesions, consists of which of the following?

a. using a magnifying glass to evaluate lesions and discolorations for morphology
b. observing for blanching after pressing a microscope slide over the skin lesion
c. noting color changes of the skin lesion under ultraviolet light
d. using various stains to enhance microscopic examination of skin scrapings


B
Diascopy consists of pressing a microscopic slide over a skin lesion. It is useful in determining if a red lesion's coloration is the result of erythema, which will blanch, or extravasation of blood, which will not blanch. Magnification consists of using a magnifying glass to evaluate lesions and discolorations for morphology. Wood's lamp, also known as an ultraviolet light, is valuable in the diagnosis of certain skin and hair diseases. Dermatophytosis in the hair shaft appears green to yellow, and erythrasma will appear coral red.

Nursing

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