Phases and Factors Influencing Wound Healing, Exams of Nursing

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TIM III-Surgery Wound Care Questions And Answers What are the 4 phases of healing? - correct answer 1. hemostasis and degeneration 2. inflammation 3. proliferation and migration 4. remodeling and maturation During this healing phase, platelet aggregation and degranulation sets off coagulation cascade - correct answer hemostasis During this healing phase, there is an increased vascular permeability, local prostaglandins are released and chemotactic substances are released - correct answer Inflammation During this healing phase on day 4, Tissue continuity re- established, Fibroblasts produce collagen, Endothelial cells promote angiogenesis - correct answer epithelialization On days 4-12 the healing phase where collagen is most abundant - correct answer profileration TIM III-Surgery Wound Care Questions And Answers The healing phase with surface layer keratinizes as final step - correct answer maturation During the remodeling stage, what is the timeframe does the collagen plateau - correct answer 3 weeks During the remodeling stage, at what is the time period when 80% of wound has tensile strength - correct answer 3 months During the remodeling stage, when does mature scar form and about 90% normal tissue back. - correct answer 1-2 years In the GI tract normal mucosa turns over when? - correct answer every 7 days T/F: The injury to mucosa or serosa heals slowly without a scar. - correct answer FALSE Example of acute wound type - correct answer traumatic injury TIM III-Surgery Wound Care Questions And Answers Rarely will granulate and close on its own - correct answer bone tissue What are the stages of wound healing of bone - correct answer 1. inflammation 2. Soft callus 3. Hard callus 4. remodeling •rarely heals on its own and injury often results in permanent damage or slow to heal - correct answer cartilage In wound healings collagen undergoes what process? - correct answer chondrification can regenerate but rarely to the same function they had before - correct answer tendons •Accelerates healing of open wounds by reducing edema, debris, contracting wound, and increasing blood supply to form granulation tissue - TIM III-Surgery Wound Care Questions And Answers correct answer Wound Vac/Negative Pressure Vacuum Therapy What else can a wound vac be used for? - correct answer prep a wound for 2nd stage skin grafting What wound vacs should NOT be used for? - correct answer malignant wounds or for fistulas (sometimes) What are the 3 steps of healing a nerve? - correct answer 1. preservation 2. regeneration 3. migration and reconnection What factors delay healing in chronic wounds? - correct answer nutritional deficiencies infections severe trauma immunocompromised states What are the clinical approaches to the closure and healing of acute wounds of primary intention? - correct answer epithelialization TIM III-Surgery Wound Care Questions And Answers connective tissue repair What are the clinical approaches to the closure and healing of acute wounds of secondary intention? - correct answer contraction epithelialization What are the clinical approaches to the closure and healing of acute wounds of tertiary intention? - correct answer contraction connective tissue repair What barrier to wound healing has delayed healing response in pts >70 - correct answer age low hematocrit (.15% drop) would indicate - correct answer poor wound healing hypoperfusion limits what? - correct answer tissue oxygenation TIM III-Surgery Wound Care Questions And Answers In obesity the increase in seroma formation makes what more susecptible? - correct answer wound infections In nutrition, lack of what affects collagen synthesis, cross- linking, & fuel for immune system - correct answer protein most common amino acid that enhances wound fibroplasia and increases wound collagen deposition - correct answer arginine What is the primary fuel for enterocytes? - correct answer glutamine What is the co-factor of collagen synthesis and cross- linking, but when deficient, impairs neutrophil function and complement activity? - correct answer Vitamin C What vitamin reverses inhibitory effects of steroids, increases lability of lysosomal membranes, which increase inflammatory response and improves wound healing in DM, tumors, and radiation? - correct answer A TIM III-Surgery Wound Care Questions And Answers If this nutritional supplement is deficient, can lead to decreased fibroblast proliferation, and it an integral component of co-factor? - correct answer zinc •are thick raised scars (collagen) that expand beyond the boundary of the incision - correct answer keloids a thick raised scar that's an abnormal response to wound healing. - correct answer hypertrophic scar What is an autosomal dominant, overabundant, extends beyond the edge, is rare in regression, affects 15x more in darker skin, has collagen fiber 20x more, and affects all areas? - correct answer keloid What is contained within the wound, with some flattening over time, affects all races are wavy in collagen fiber direction only 6x more collagen fiber quantity - correct answer scar