Test Bank For Modern Blood Banking & Transfusion Practices 7th Edition By Denise M Harmening 9780803668881 Chapter 1-29 Complete Guide .

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TEST BANK FOR MODERN BLOOD BANKING & TRANSFUSION PRACTICES 7TH EDITION BY DENISE M
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HARMENING
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9780803668881 CHAPTER 1-29 COMPLETE GUIDE ff ff ff ff




Chapter 1 RBCs and Platelet Preservation: Historical Perspectives and Current Trends
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Multiple Choice ff


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 ff f f


b. Luebering-Rapoport shunt d. Methemoglobin reductase ff ff




2. A unit of blood was returned to the blood bank before it was spiked. Apparently the
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patient’s IV failed. The unit of blood was outside the blood bank for 35
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minutes. Which of the statements below is most accurate?
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a. The unit of blood should be discarded immediately.
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b. The unit of blood can be returned to inventory. ff f f f f ff f f f f ff ff


c. The unit of blood must be transfused within 4 hours or be discarded at the end of
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that time. f f f f


d. The unit of blood must be transfused with 24 hours.
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3. What is the average diameter of a platelet?
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a. 5 to 10 µm c. 1 to 2 µm
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b. 2 to 4 µm d.
f f 4 to 6 µm f f f f f f f f f f




4. In the normal hemoglobin-oxygen dissociation curve, what percentage of oxygen is
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released to the tissues when PO2 averages 40 mm Hg?
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a. 75% c. 100%
b. 25% d. 50%
5. What factors are known to influence platelet metabolism and function?
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a. Storage temperature c. Platelet count ff ff


b. Initial pH d. All of the above f f f f f f mm




6. Which of the following red blood cell morphologies may be present on the peripheral
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blood smear as a result of loss of RBC membrane?
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a. Spherocytes c. Burr cells mm



b. Target cells d. Schistocytes ff




7. What does the term autologous transfusion refer to?
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a. A parent donating blood for his or her child
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b. An individual donating blood for a friend ff f f ff f f mm f f


c. An individual donating blood for a relativeff mm ff mm f f f f


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




9. All of the following areas of red blood cell biology are crucial for normal erythrocyte
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survival except:
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a. Cellular metabolism. c. Site of the ABO antigen attachment.
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b. RBC membrane. d. Hemoglobin structure.
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10. What is the correct biochemical composition of the RBC membrane?
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a. 52% protein, 40% lipid, 8% carbohydrate
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b. 40% protein, 8% lipid, 52% carbohydrate
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c. 8% protein, 52% lipid, 40% carbohydrate
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d. 8% lipid, 40% carbohydrate, 52% protein
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11. All of the following biochemical changes are associated with loss of red blood cell
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storage viability upon
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except:
a. Decreased pH. ff c. Increased ATP level. ff ff


b. Loss of red blood cell function.
f f f f f f ff f f d. Decreased glucose consumption. ff f f




12. Which red blood cell preservative f f f f f f f f f f has a storage time f f f f f f f f of f f 35 days? f f


a. ACD c. AS-1
b. CPDA-1 d. CPD

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

14. What percentage of platelets is sequestered in the spleen as functional reserve after
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being released from the bone marrow?
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a. 30% c. 10%
b. 50% d. 25%

15. What is the major f f f f f f f f biochemical consideration in platelet storage? f f mm f f f f


a. Glucose metabolism ff c. Production of carbon dioxide ff f f mm



b. Oxygen supply ff d. Regulation of pH ffm f f m f f mm mm




16. What would the hemoglobin-oxygen dissociation curve depict in a patient
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exhibiting clinical signs of alkalosis?
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a. Normal c. Shift to the right f f f f f f


b. Shift to the left f f d. None of the above
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17. Name the main lipid components of a red blood cell
f f f f f f mm f f f f mm f f f f f f membrane.
a. Phospholipid c. Glycolipid
b. Sphingomyelin d. Glycophorin A ff




18. The ABO blood groups ff f f mm f f were discovered in 1901 by whom?
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a. Charles Drew mm c. Loutit and Mollison f f f f


b. Karl Landsteiner mm d. Edward Lindeman ff




19. A standing order of platelets was shipped to your facility by your supplier. It was
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inadvertently left in the corner of the department until discovered 36 hours later.
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What would the appropriate action be for the blood banker?
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a. If the temperature in the box was 22 +/- 2°C and the platelet swirl
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seemed OK, it would be OK to accept the unit into inventory.
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b. The platelets have fallen outside the supplier’s quality assurance. The
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unit should be discarded because the pH has probably dropped too
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low and platelet activation has been compromised.
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c. If the temperature was 1°C to 6°C and the platelet swirl seemed OK, it would be OK
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