WGU D115 Unit 5 Questions & Answers/ (Top 2024/2025 EXAM REVIEW PAPERS / GRADED A+/ 100% Accurate)

WGU D115 Unit 5 Questions & Answers Which two processes are involved in platelet activation? Cyclooxygenase-1 (COX-1) inactivation Aggregation Adhesion -Platelet activation involves three linked processes: (1) adhesion, (2) activation, and (3) aggregation. Platelet activation stimuli include epinephrine, thrombin, and collagen. Select four common causes of anemia from the list below. Increased red cell destruction Chronic blood loss Severe bleeding Impaired erythrocyte production Blood transfusion -Impaired production of erythrocytes, increased red cell destruction, severe bleeding, and chronic blood loss can cause anemia. explain why the nurse practitioner should ask the patient about her paresthesias and ataxia. - Without the presence of intrinsic factor, vitamin B12 will not be absorbed effectively from the gastrointestinal tract. Describe what causes pernicious anemia. -Pernicious anemia is caused by vitamin B12 deficiency, which is often associated with the end stage of type A chronic atrophic (autoimmune) gastritis. Autoimmune gastritis impairs the production of IF, which is required for vitamin B12 uptake from the gut. Select three possible causes of lymphadenopathy from the options below. Inflammatory condition Lipid storage disease Neoplastic disease Cardiac disease Peripheral vascular dysfunction -There are multiple causes of lymphadenopathy. It may be caused by neoplastic disease, so all lymphadenopathies must be closely followed and evaluated. Lymphadenopathy may also be caused by an immunologic or inflammatory condition and by lipid storage disease; this type of lymphadenopathy is usually widespread, including the liver and spleen. What is the most common cause of iron deficiency anemia (IDA) in children during the first few years of life? Dietary insufficiencies Absorption problems Blood loss Increased iron requirement -Insufficient dietary iron is the most common cause of IDA in children during the first few years of life. Which stressor triggers sickling? Increased plasma volume Increased oxygen tension of the blood Decreased plasma osmolality Low temperature -Low temperature causes vasoconstriction, slowing blood flow, leading to RBC deoxygenation, which triggers sickling. cause of ITP -In 70% of ITP cases, there is an antecedent viral disease that stimulates production of antiplatelet antibodies that bind to the plasma membranes of platelets, causing platelet sequestration and destruction by phagocytes in the spleen and other lymphoid tissues at a rate that exceeds the ability of the bone marrow to produce them. What is the likelihood that the patient will recover? with ITP -The prognosis is excellent; 75% of children recover completely within three months. By six months after onset, 80% of affected children have regained normal platelet counts. What is a function of the pericardial sac? It provides protection to heart valves and heart chambers. It provides a physical barrier that protects the h