Pediculous Capitis.docx - Pediculosis Capitus(Head Lice Etiology Infestation of human parasitic lice which feed exclusively on human blood lay eggs(nits

Pediculous Capitis.docx - Pediculosis Capitus(Head Lice...

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Pediculosis Capitus (Head Lice) Etiology: Infestation of human parasitic lice, which feed exclusively on human blood, lay eggs (nits) on body hairs or clothing fibers and, after hatching, must feed within 24 hours or die. Eggs hatch in 7 day-10 days Causes: Transmission is from person to person via close physical contact or through fomits such as combs, clothing, hats, and linens. Pediculus humanus var. capitis, P. humanus var. corporis Spreads through shared clothing, hats, combs, and hairbrushes Signs and Symptoms: Pruritis Risk Factors: Poor hygiene (corporis and pubis; not capitis) Overcrowded living conditions or congregate settings Immunosuppression Complications: Skin excoriation Secondary bacterial infections Hyperpigmentation or residual scarring Assessment: Visible lice Skin excoriation on the scalp and neck Matted, lusterless hair (in severe cases) Occipital and cervical lymphadenopathy Oval, gray-white nits visible on hair shafts Red papules or macules, usually on the shoulders, trunk, or buttocks
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  • Fall '16
  • Geography, Head louse, Combs, Pediculosis, Body louse, Louse, Pediculosis Capitus

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