NR 283 patho exam 2 study guide

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Review of Knowledge Course NR283 Exam EXAM 2 Purpose The Review of Knowledge (ROK) focuses on course outcomes, unit outcomes and key concepts to enhance student success on exams. Key Concepts ... Student Notes Unit 3  Pathophysiology of Skin o Skin Function o acute necrotizing facitis  pressure ulcers all stages Acts as first line of defense Prevents excessive fluid loss Controls body temperature Active in sensory perception Synthesizes vitamin D Ischemic ulcers from unrelieved pressure, shearing, friction and moisture Usually develop over bony prominences-sacrum, heels, ischia, greater trochanters 4 stages 1) Stage 1-nonblanchable erythema, intact skin 2) Stage 2-partial thickness skin loss, involves epidermis & dermis 3) Stage 3- full thickness skin loss, involves damage or necrosis of Sub Q, may include fascia 4) Stage 4- full thickness tissue loss; exposure of muscle, bone, supporting structures  Pathophysiology of Respiratory System o Review Respiratory function  Respiration  Ventilation  Perfusion and Gas Exchange  ABGS  Responsible for transporting oxygen (breathe in) and carbon dioxide (CO2) (breathe out)  respiration Perfusion-the flow of blood in the microcirculation to supply oxygen and nutrients to cells...return deoxygenated blood to lung  o Infectious Disorders  Lower Respiratory Infections –pneumonnia, TB o Obstructive Lung Diseases  Inflammatory o Asthma  Neoplastic o Lung cancer Adapted from the POET - ROK Form Revised 12/22/2016 1 [Show More]

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