Question: Pressure ucler (pressure sore, decubitus ulcer or bedsore)

Answer: impaired skin integrity resulting from pressure >localized injury to the skin and/or underlying tissue, usually over a bony prominence, as a result of pressure or pressure in combination w/ shear and/or friction

Question: Tissue ischemia

Answer: obstructed blood flow to tissues causing tissue death

Question: Reactive hyperemia

Answer: dialation of superficial capillaries causing redness of skin

Question: Blanchable hyperemia

Answer: an area that appears red and warm will turn a lighter color with palpation

Question: NONblanchable hyperemia

Answer: redness that persists after palpation, indicting tissue damage>this stage of skin injury is reversible if the pressure is relieved & the tissue protected

Question: Shear

Answer: Factors contributing to pressure ulcer formation>force exerted against skin

Question: Friction

Answer: Factors contributing to pressure ulcer formation>results from two surfaces rubbing against each other

Question: moisture

Answer: Factors contributing to pressure ulcer formation>reduces skin's resistance to other forces such as pressure or shear>skin moisture and wetness from incontinence can cause skin breakdown

Question: poor nutrition

Answer: Factors contributing to pressure ulcer formation>causes tissue to become susceptible to breakdown-protein deficiency, causes soft tissue to become susceptible to breakdown>low protein levels cause edema or swelling which contributes to problems w/ oxygen transport & the transport of nutrients

Question: edema

Answer: increases the affected tissue's risk for pressure ulcer formation

Question: infection

Answer: Factors contributing to pressure ulcer formation>increases metabolic needs making tissue susceptible to ischemic injury

Question: age

Answer: Factors contributing to pressure ulcer formation>loss of dermal thickness and increases risk for skin tears