A school nurse assesses a child who has an erythematous circular patch of vesicles on her scalp with alopecia and complains of pain and pruritus. Why would the nurse use a Woods lamp?
a. To dry out the lesions
b. To reduce the pruritus
c. To kill the fungus
d. To cause fluorescence of the infected hairs
ANS: D
Tinea capitis is commonly known as ringworm of the scalp. Microsporum audouinii is the major fungal pathogen. The use of the diagnostic Woods lamp causes the infected hairs to turn a brilliant blue green.
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