HEMATOLOGY LEC 1-4 (UAMS) QUESTIONS AND ANSWERS | LATEST VERSION | 2024/2025 | GRADED A+

HEMATOLOGY LEC 1-4 (UAMS) QUESTIONS AND ANSWERS | LATEST VERSION | 2024/2025 | GRADED A+ A medical laboratory Scientist is performing a manual white blood cell count. There are 250 white cells counted in the first side of the hemacytometer, and 285 in the other side. A standard 1:20 dilution is used, and the 4 large corner squares are counted. Determine the white blood cell count. Cannot be performed because the counts between the two chambers do not agree within 10%. Need to make new dilution, reload chamber, and recount. Basophilic Normoblast is known as Prorubricyte Buffer Controls the pH of the staining process Diapedesis Outward passage of White Blood Cells through intact vessel walls. Eosin Acidic and stains basic and eosinophilic components such as hemoglobin and eosinophilic granules. Eosinophilia increased number of eos; may be due to parasitic infection Erythroid hyperplasia - increased red cell formation Erythropoietin is A hormone produced and released by the kidney that stimulates the production of red blood cells by the bone marrow. Extramedullary hemolysis Cell destruction outside the bone marrow Growth factors includes colony-forming units colony stimulating factors erythropoietin Hematocrit Female: 35- 49% Male: 40-54% Newborn: 48-68% Child: 34-48% Hematopoiesis Formation and development of blood cells occurring primarily in the bone marrow and peripheral lymphatic tissues. Hemoglobin Female: 12 - 15 g/dL Male: 13.5 - 18 g/dL Newborn: 16.5 - 21.5 g/dL Child: 9.6-15.6 g/dL Intramedullary hemolysis Cell destruction in the bone marrow Intravascular Hemolysis Destruction of red blood cells within blood vessels Lymphopenia decreased number of lymphs Margination Accumulation and adhesion of leukocytes to the epithelial cells of blood vessel walls at the site of injury in early stages of inflammation. MCH - mean cell hemoglobin - weight of hemoglobin contained