Updated/Latest Modern Blood Banking and Transfusion Practices 6th Edition Denise M. Harmening Test Bank Complete All Chapters Comprehensive Immunohematology Resource Practice Questions Answers Rationales Blood Banking Transfusion Medicine ASCP Review Stud

TESTBANKFOR
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MODERN BLOOD L
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BANKING &
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TRANSFUSION
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PRACTICES 6TH
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EDITIONDENISEM.
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HARMENING
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,TEST BANK FOR MODERNBLOODBANKING
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& TRANSFUSION PRACTICES
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6TH EDITION L
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DENISE M. HARMENING L
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, Chapter 1 RBCs and Platelet Preservation: Historical Perspectives and Current Trends
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Multiple Choice L
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Identify the choice that best completes the statement or answers the question.
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1. Which metabolic pathway is responsible for generating 90% of the ATP for the RBC?
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a. Pentose phosphate shunt c. Glycolysis YFT L L
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b. Luebering-Rapoport shunt d. Methemoglobin reductase L
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2. A unit of blood was returned to the blood bank before it was spiked. Apparently the patient’s IV failed.
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The unit of blood was outside the blood bank for 35 minutes. Which of the statements below is most
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accurate? YFT L



a. The unit of blood should be discarded immediately. YFT L YFT L YFT L YFT L YFT L YFT L YFT L



b. The unit of blood can be returned to inventory. YFT L YFT L YFT L YFT L YFT L YFT L L
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c. The unit of blood must be transfused within 4 hours or be discarded at the end of that time.
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d. The unit of blood must be transfused with 24 hours. YFT L L
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3. What is the average diameter of a platelet? YFT L YFTL YFT L YFTL YFT L YFTL L
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a. 5 to 10 µm YFTL YFT L L
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b. 2 to 4 µm YFTL YFT L YFT L d. 4 to 6 µm Y F T L Y F T L YFT L L
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4. In the normal hemoglobin-oxygen dissociation curve, what percentage of oxygen is released to the
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tissues when PO2 averages 40 mm Hg?
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a. 75% c. 100%
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5. What factors are known to influence platelet metabolism and function?
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a. Storage temperature c. Platelet count YFT L YFTL



b. Initial pH d. All of the above YFT L Y F T L Y F T L Y FT L YFT L YFT L




6. Which of the following red blood cell morphologies may be present on the peripheral blood smear as a
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result of loss of RBC membrane?
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a. Spherocytes c. Burr cells L
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b. Target cells d. Schistocytes L
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7. What does the term autologous transfusion refer to? YFT L YFT L YFT L YFTL YFT L L
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a. A parent donating blood for his or her child L
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b. An individual donating blood for a friend YFT L YFT L L
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c. An individual donating blood for a relative YFT L YFT L YFT L YFT L YFT L YFT L



d. An individual donating blood for his or her own transfusion YFT L YFT L YFT L YFT L YFT L L
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8. What is the primary function of hemoglobin? YFT L YFTL YFT L YFT L L
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a. Iron metabolism c. Oxygen transport YFT L L
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b. Porphyrin synthesis d. Signal transduction YFT L Y F T L Y F T L YFT L




9. All of the following areas of red blood cell biology are crucial for normal erythrocyte survival except:
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a. Cellular metabolism. c. Site of the ABO antigen attachment. L
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b. RBC membrane. d. Hemoglobin structure. YFT L Y F T L Y F T L YFT L




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, Y F T L 10. Y F T What is the correct biochemical composition of the RBC membrane?
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a. 52% protein, 40% lipid, 8% carbohydrate YFT L YFT L L
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b. 40% protein, 8% lipid, 52% carbohydrate YFT L YFT L YFT L YFTL YFT L


c. 8% protein, 52% lipid, 40% carbohydrate YFTL YFT L YFT L YFTL YFT L



d. 8% lipid, 40% carbohydrate, 52% protein YFTL L
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Y F T L 11. Y F T L Y F T L All of the following biochemical changes are associated with loss of red blood cell viability upon
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YFT storage
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except:
a. Decreased pH. YFT L c. Increased ATP level. YFT L Y FT L



b. Loss of red blood cell function. YFT L YFT L L
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Y F T L 12. Which red blood cell preservative has a storage time of 35 days?
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a. ACD c. AS-1
b. CPDA-1 d. CPD Y F T L Y F T L




Y F T L 13. The RBC membrane is relatively permeable to all of the following except:
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a. Chloride. c. Bicarbonate.
b. Sodium. d. Water. Y F T L Y F T L




Y F T L 14. What percentage of platelets is sequestered in the spleen as functional reserve after being released
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from the bone marrow?
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a. 30% c. 10%
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Y F T L 15. What is the major biochemical consideration in platelet storage?
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a. Glucose metabolism c. Production of carbon dioxide YFT L YFTL YFTL YFT L



b. Oxygen supply d. Regulation of pH YFTL Y F T L Y F T L YFT L YFT L




Y F T L 16. What would the hemoglobin-oxygen dissociation curve depict in a patient exhibiting clinical
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signs of alkalosis?
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a. Normal c. Shift to the right L
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b. Shift to the left d. None of the above L
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Y F T L 17. Name the main lipid components of a red blood cell membrane.
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a. Phospholipid c. Glycolipid
b. Sphingomyelin d. Glycophorin A Y F T L Y F T L L
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a. Charles Drew c. Loutit and Mollison YFT L YFTL YFT L



b. Karl Landsteiner d. Edward Lindeman L
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Y F T L 19. A standing order of platelets was shipped to your facility by your supplier. It was inadvertently
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left in the corner of the department until discovered 36 hours later. What would the appropriate action be
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for the blood banker?
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a. If the temperature in the box was 22 +/- 2°C and the platelet swirl seemed OK, it would
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be OK to accept the unit into inventory.
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b. The platelets have fallen outside the supplier’s quality assurance. The unit should be
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discarded because the pH has probably dropped too low and platelet activation has been YFT L YFTL YFT L YFT L L
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compromised. YFT L



c. If the temperature was 1°C to 6°C and the platelet swirl seemed OK, it would be OK to
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This study source was downloaded by 100000826342158 from CourseHero.com on 09-15-2021 17:54:15 GMT
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