Blood Worksheet Lab 2

NAME: D AT E :  I N S T R U C TO R : S E C T I O N / G R O U P:  W O R K S H EE T: L ab o rato ry 2 Ke y Ter m Match i n g K J _____2. N _____3. F _____4. C _____5. H _____6. L _____7. A _____8. G _____9. D _____10. B _____11. I _____12. O _____13. E _____14. M _____15. R _____16. P _____17. T _____18. Q _____19. S _____20. _____1. Plasma A. transports oxygen and carbon dioxide Lymphocytes B. slide used to count RBCs Hematocrit C. caused by vitamin B12 deficiency Hematopoiesis D. WBCs Pernicious anemia E. increased in persons with allergies Megakaryocyte F. Agglutination G. molecule that stimulates antibody production Erythrocytes H. cell that fractures to produce platelets Antigen I. used to measure hemoglobin concentration Leukocytes J. increased by a viral infection Hemocytometer K. liquid matrix of blood Hemoglobinometer L. Hemoglobin M. condition of having too many RBCs Basophils N. percentage of whole blood that is formed elements Polycythemia vera O. iron-containing protein in RBCs Platelets P. Neutrophils Q. results from loss of blood-producing bone marrow Eosinophils R. play a role in blood clotting process Aplastic anemia S. an inherited condition Sickle cell anemia T. process that produces formed elements clumping of blood cells decreased by radiation exposure increased in parasitic infections Critic a l Th i n ki n g Q uesti o n s 1. The white blood cell count is increased in a person with an infection. Explain why a differential white blood cell count would help a physician accurately diagnose exactly what type of infection a person has. When a differential WBC count is performed it would tell the physician what specific white blood cell has increased in this case it would be Neutrophils 2. Persons with type O- blood are often referred to as the “universal donors.” Based on the antigens found on type O- blood cells and the antibodies found in potential recipient’s plasma, explain why this is true. Type O- blood possesses no A and no B antigens on its red blood cells and no Rh factor and can, therefore, be transfused with any blood group. Plasma recipient anti-A, anti-B, and anti-Rh will not destroy O- cells, for no antigens with which to bind will ever occur. With no A, no B, and no Rh antigens, blood group O- can, therefore, be transfused into any recipient, regardless blood group, and for that reason, it is a " universal donor." 3. Explain why it would not be possible to accurately measure hemoglobin concentration if the RBCs were not first lysed. Hemoglobin is contained in red blood cells (RBCs), and whole RBCs exclude hemoglobin and will not enter a state of sol, and whole RBCs cause scattered light during spectrophotometric analysis, and whole RBCs distort absorption reading and report spurious reduced values for measured hemoglobin. Lysis of whole RBCs liberate all of the hemoglobin, and specific colorimetric determination can then follow. 4. Leukemia is a type of bone marrow cancer in which the hematopoietic tissue produces a very large number of immature leukocytes. At the same time, the patient is anemic and bruises easily. What does the anemia and easy bruising indicate about the effect of leukemia on red bone marrow? The anemia and easy bruising indicate that leukemia disrupts red bone marrow function, reducing the production of RBCs (causing anemia) and platelets (leading to easy bruising and bleeding). What are the specific reasons for the conditions listed below: an insufficient number of RBCs or a problem with hemoglobin production. a. Pernicious anemia Problem with hemoglobin production b. Iron-deficiency anemia Problem with hemoglobin production c. Aplastic anemia Insufficient number of RBCs d. Sickle cell anemia Insufficient number of normal RBCs e. Hemorrhagic anemia Insufficient number of RBCs 5. What would an increase in leukocrit possibly indicate? An increase in leukocrit possibly indicates an infection, inflammation, or a hematologic disorder such as leukemia.