PNR 120 Exam 3 (Answered) Complete Solution

PNR 120 Exam 3 (Answered) Complete Solution Skin functions -protective covering -waterproof due to keratin -barrier to bacteria and other invading organism -protects underlying tissues from thermal, chemical, and mechanical injury -regulates body temp -converts ultraviolet rays to vitamin d -melanin protects tissue from UV light -nerve receptors transmit feelings of heat, cold, pain, touch, and pressure age related changes in skin and structure -decreased elastic fibers -loss of collagen fibers -skin becomes thinner and more transparent -reduced sebaceous gland activity -reduction in melanocyte activity -decrease in hair follicles -some areas of melanocytes increase (senile lentigines/ age spots) prevention of integumentary system hygiene, diet, age, environment -coumadin can make skin brittle dx of integumentary system -skin biopsy -c/s -microscopic test -special light inspection -diascopy -skin patch testing Braden Scale Pressure ulcers lower the number, higher the risk 4-23 less than 17 = risk for pressure ulcers risk factors for skin tears -dehydration -ecchymoses -friction, shearing, pressure from bed or chair -impaired sensory perception or mobility -medications like corticosteroids -renal disease, CHF, stroke -incorrect removal of adhesive dressings -rough handling when being moved Payne-Martin Classification System -Category I: a skin tear without tissue loss -Category II: a skin tear with partial tissue loss