Self Quiz ch 19- Cardiovascular /The Blood/ Pro: Manhal Chbat, MD 1. Which of the following are plasma proteins made by the liver? A) albumins B) fibrinogens C) globulins D) immunoglobulins E) All except D are correct. 2. Hemoglobin A) constitutes 90% of an erythrocyte's mass. B) consists of one alpha and one beta chain of protein. C) has a central protein called heme. D) has an Fe2+ at the center of it's heme group. E) binds CO2 to the Fe2+ at the center of it's heme group. 3. Hemoglobin A) transports most of the O2 and about 23% of the CO2 between the tissues and the lungs. B) abnormalities seldom affect RBC shape or durability. C) has no effect on blood pressure and blood distribution. D) A1c levels can be used to monitor the blood Na+ levels. E) contributes the no color to erythrocytes. 4. When hemoglobin is recycled, what happens to the heme group? A) It is digested into amino acids, which are used by cells to build new proteins. B) It is transported back to the bone marrow by ferritin or transferrin. C) It is converted to biliverdin and then to bilirubin. 5. A medical technology student is learning to count blood cells the low-tech way: using a microscope and a special slide called a hemocytometer. She has just found a round, darkly-stained white blood cell that contains large granules. She cannot see the cell's nucleus. The student is probably looking at a A) basophil B) eosinophil C) monocyte D) lymphocyte E) neutrophil
6. Two doctors, trained in different decades and different parts of the country, call the critical care nurses' station and ask for a report on a patient's blood work. One doctor is particularly interested in the patient's segs and the other in the patient's PMNs. Both want to know about bands. The experienced, welleducated R.N. answering the calls knows that A) segs are white blood cells with segmented nuclei, also known as mature neutrophils. B) PMNs are polymorphonuclear cells, also known as mature neutrophils. C) bands are immature neutrophils. 7. How do white blood cells (WBCs) differ from red blood cells (RBCs)? A) WBCs have nuclei: RBCs do not. B) WBCs have MHC antigens: RBCs do not. C) WBCs can leave the blood vessels; RBCs cannot. 8. Place the following in the order in which they develop: 1. lymphoid stem cells 2. myeloid stem cells 3. megakaryocytes 4. megakaryoblasts 5. platelet 6. megakaryocyte colony forming cells A) 1, 6, 4, 3, 5 but never 2 B) 1, 6, 4, 3, 5 but never 2 C) 2, 6, 4, 3, 5 but never 1 D) 2, 4, 6, 3, 5 but never 1 E) 2, 6, 4, 5, 3 but never 1 9. Stem cells for blood formation may be harvested from A) the patient's on marrow if his or her cancer is in remission. B) the marrow from the iliac crest of a closely matched donor. C) umbilical cord blood from a newborn whose parents have agreed to the donation. 10. Three year old Juanita has a rare form of leukemia. The doctors have recommended, and her family has agreed, that her best chance of survival is to destroy her bone marrow and then replace it with stem cells from a donor. Which of the following sources of stem cells would probably be best? A) bone marrow from the iliac crest of her mother B) bone marrow from the iliac crest of her older half-brother
C) stored cord-blood from her baby sister D) stored cord-blood of her own E) bone marrow from the iliac crest of her mother's friend 11. Hemostasis A) is a sequence of events that prevents the loss of blood from blood vessels. B) must be rapid, localized and carefully controlled. C) involves vascular spasm, platelet plug formation and coagulation. D) can prevent hemorrhage if the damaged blood vessels are small. E) All of the above are correct. 12. Which of the following is NOT normally found inside platelets? A) fibrinogen B) ADP C) thromboxane A2 D) serotonin E) platelet-derived growth factor 13. Which of the following events occurs first? A) coagulation B) platelet adhesion C) platelet plug formation D) platelet aggregation E) platelet release reaction 14. What is the first step in the common pathway of blood coagulation? A) formation of prothrombinase B) formation of fibrinogen C) formation of prothrombin D) formation of thrombin E) formation of fibrin 15. Intravascular blood clotting A) is called fibrinolysis. B) occurs when the linings of blood vessels are smooth and intact. C) results in formation of a thrombus. D) most frequently occurs in arteries with rapid blood flow. E) is inhibited by thromboxane A2. 16. Blood groups are based on A) the presence of inherited antigens on the surfaces of leukocytes and other nucleated cells. B) the presence of inherited antigens on the surfaces of erythrocytes.
C) the presence of inherited circulating antibodies. D) the presence of induced circulating antibodies. E) All of these are correct. 17. The ABO blood group is based on the presence of A) type A and type B glycolipids on the surfaces of erythrocytes. B) type A and type B glycolipids on the surfaces of leukocytes. C) type A and type B glycoproteins on the surfaces of nucleated cells. D) type A and type B glycoproteins circulating in the plasma. E) type A and type B glycolipids circulating in the plasma. 18. Ban has no circulating anti-a, anti-b or anti-d antibodies. What is his blood type? A) A positive B) AB negative C) B negative D) O negative E) Either A or B is correct. 19. Deandray has circulating anti-a, anti-b and anti-d antibodies. Which of the following blood types may safely receive blood from him? A) O negative B) A positive C) B negative D) None of these types may safely receive blood from him. E) All of these types may safely receive blood from him. 20. If a type A negative patient is accidentally given type B positive blood, what will happen? A) Nothing will happen because this is a safe match. B) The patient's agglutinins will begin to attack the donated erythrocytes. C) The patient's agglutinogens will begin to attack the donated erythrocytes. D) The donor's agglutinogens will begin to attack the patient's agglutinins. E) Either B or C may occur. 1. E 2. D 3. A 4. C 5. A 6. E 7. E 8. C Answer Key - Untitled Exam-1
9. E 10. C 11. E 12. A 13. B 14. A 15. C 16. B 17. A 18. B 19. E 20. B