WGU D115 PATHO UNIT 5 HEMATOLOGIC SYSTEM 2025 EXAM QUESTIONS WITH 100% APPROVED CORRECT ANSWERS FIRST CLASS PASS

WGU D115 PATHO UNIT 5 HEMATOLOGIC SYSTEM 2025 EXAM QUESTIONS WITH 100% APPROVED CORRECT ANSWERS FIRST CLASS PASS 2025 EXAM  WGU D115 PATHO UNIT 5 HEMATOLOGIC SYSTEM 2025 EXAM QUESTIONS WITH 100% APPROVED CORRECT ANSWERS FIRST CLASS PASS Processes of platelet activation - CORRECT ANSWER Adhesion, activation, aggregation function of platelets - CORRECT ANSWER blood clotting Function of Erythrocytes (RBCs) - CORRECT ANSWER Transport gases (O2 and CO2) Transport electrolytes Regulate diffusion across cell membrane function of leukocytes (WBC) - CORRECT ANSWER defense and immunity Types of Leukocytes (WBCs) - CORRECT ANSWER Granulocytes: -Neutrophils -Basophils -Eosinophils Agranulocytes: -Monocytes -Macrophages -Lymphocytes -Natural Killer Cells (NKCs) Anemia - CORRECT ANSWER Decrease in total number of erythrocytes in circulation blood or quality or quantity of hemoglobin Classifications of anemia - CORRECT ANSWER microcytic, normocytic, macrocytic microcytic hypochromic anemia - CORRECT ANSWER Disorders of hemoglobin synthesis, iron deficiency macrocytic anemia - CORRECT ANSWER Abnormal maturation of erythrocyte precursors on bone marrow, usually due to deficiency in B12 and/or folate which affects DNA synthesis normocytic normochromic anemia - CORRECT ANSWER Characterized by red cells that are relatively normal in size and hemoglobin content but insufficient in number, shape of RBC helps determine cause/type anisocytosis - CORRECT ANSWER presence of red blood cells of various sizes poikilocytosis - CORRECT ANSWER condition characterized by red blood cells in a variety of shapes Eryptosis - CORRECT ANSWER premature death of damaged erythrocytes intrinsic factor - CORRECT ANSWER Protein transporter necessary for absorption of vitamin B12 pernicious anemia (PA) - CORRECT ANSWER Chronic, progressive anemia found mostly in people older than age 50 resulting from a lack of sufficient vitamin B12 needed for blood cell development. Usually related to lack of intrinsic factor from gastric parietal cells required for absorption. Erythropoiesis - CORRECT ANSWER production of red blood cells Hematopoiesis - CORRECT ANSWER blood cell formation in bone marrow Hemostasis - CORRECT ANSWER to stop or control bleeding Mechanism of hemostasis - CORRECT ANSWER 1. Blood vessel wall injured, collagen fibers exposed at damaged site 2. Release of *endothelin* (vasoconstrictor) & von Willebrand (vWF) which bonds exposed collagen fibers 3. Platelets adhere to exposed collagen *by binding to vWF* and they get activated (*platelet activation*) - platelet shape transformation - platelet degranulation (a/d granules) - platelet aggregation -- *PRIMARY HEMOSTATIC PLUG (LOOSE)* 4. Conversion of fibrinogen to fibrin