A school nurse is assessing a school-age child and notices silver specks that resemble dandruff but donÔÇÖt brush off the hair. The child continuously scratches at the nape of their neck. The nurse should suspect which of the following disorders?

The correct answer is D: Pediculosis capitis. The presence of silver specks that resemble dandruff but do not brush off the hair, along with continuous scratching at the nape of the neck, are classic signs of head lice infestation (pediculosis capitis). Lice eggs (nits) appear as small, silver specks attached to the hair shafts and are difficult to remove by brushing. The scratching at the nape of the neck is a common symptom due to itching caused by lice bites. Impetigo contagiosa (A) is a bacterial skin infection characterized by honey-colored crusts, not silver specks. Folliculitis (B) is inflammation of hair follicles, not associated with silver specks or nape scratching. Tinea capitis (C) is a fungal infection of the scalp, typically causing scaling and hair loss, not silver specks.