1. 17
Blood

2. After centrifuging, of the listed blood components, which contains the components of immune function?
Plasma
Buffy coat
Erythrocytes
Hematocrit
Answer: b. Buffy coat
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3. After centrifuging, of the listed blood components, which contains the components of immune function?
Plasma
Buffy coat
Erythrocytes
Hematocrit
Answer: b. Buffy coat
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4. A major function of the most common plasma protein, albumin, is ________.
maintenance of plasma osmotic pressure
buffering changes in plasma pH
fighting foreign invaders
both a and b
Answer: d. both a and b
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5. A major function of the most common plasma protein, albumin, is ________.
maintenance of plasma osmotic pressure
buffering changes in plasma pH
fighting foreign invaders
both a and b
Answer: d. both a and b
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6. Red blood cells are efficient oxygen transport cells
Red blood cells are efficient oxygen transport cells. Of the following characteristics, which is the major contributor to the significant oxygen-carrying capacity of a red blood cell?
Red blood cells lack mitochondria.
Red blood cells don't divide.
Red blood cells are biconcave discs.
Red blood cells contain myoglobin.
Answer: c. Red blood cells are biconcave discs.
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7. Red blood cells are efficient oxygen transport cells
Red blood cells are efficient oxygen transport cells. Of the following characteristics, which is the major contributor to the significant oxygen-carrying capacity of a red blood cell?
Red blood cells lack mitochondria.
Red blood cells don't divide.
Red blood cells are biconcave discs.
Red blood cells contain myoglobin.
Answer: c. Red blood cells are biconcave discs.
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8. Each hemoglobin can transport ________ oxygen atoms.4 40
400
4000
Answer: a. 4
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9. Each hemoglobin can transport ________ oxygen atoms.4 40
400
4000
Answer: a. 4
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10. Oxygen binds to the _______ portion of hemoglobin.
oxyhemoglobin
iron atom
amino acid
Answer: c. iron atom
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11. Oxygen binds to the _______ portion of hemoglobin.
oxyhemoglobin
iron atom
amino acid
Answer: c. iron atom
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12. A patient with low iron levels would experience which of the following symptoms?
An increased white blood cell count
An increase in energy level
An increase in fatigue
A decreased white blood cell count
Answer: c. An increase in fatigue
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13. A patient with low iron levels would experience which of the following symptoms?
An increased white blood cell count
An increase in energy level
An increase in fatigue
A decreased white blood cell count
Answer: c. An increase in fatigue
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14. A hematopoietic stem cell will give rise to __________.
erythrocytes
leukocytes
platelets
all of the above
Answer: d. all of the above
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15. A hematopoietic stem cell will give rise to __________.
erythrocytes
leukocytes
platelets
all of the above
Answer: d. all of the above
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16. Predict the outcome of an overdose of the hormone erythropoietin.
The blood viscosity increases to levels that may induce heart attacks or strokes.
The oxygen-carrying capacity remains unchanged despite elevated red blood cell counts.
Red blood cell counts remain unchanged, but the number of reticulocytes increases.
Blood viscosity levels decrease while oxygen-carrying capacity increases.
Answer: a. The blood viscosity increases to levels that may induce heart attacks or strokes.
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17. Predict the outcome of an overdose of the hormone erythropoietin.
The blood viscosity increases to levels that may induce heart attacks or strokes.
The oxygen-carrying capacity remains unchanged despite elevated red blood cell counts.
Red blood cell counts remain unchanged, but the number of reticulocytes increases.
Blood viscosity levels decrease while oxygen-carrying capacity increases.
Answer: a. The blood viscosity increases to levels that may induce heart attacks or strokes.
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18. What response would you expect after traveling to high altitude for two weeks?
Blood levels of oxygen would remain depressed for the duration.
A surge in iron release from the liver would occur.
The kidneys would secrete elevated amounts of erythropoietin.
There would be no change in blood composition.
Answer: c. The kidneys would secrete elevated amounts of erythropoietin.
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19. What response would you expect after traveling to high altitude for two weeks?
Blood levels of oxygen would remain depressed for the duration.
A surge in iron release from the liver would occur.
The kidneys would secrete elevated amounts of erythropoietin.
There would be no change in blood composition.
Answer: c. The kidneys would secrete elevated amounts of erythropoietin.
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20. If a patient has pernicious anemia, the inability of the body to absorb vitamin B12, the patient ________.
would have reduced blood iron levels
would have a decreased number of red blood cells
would have increased levels of hemoglobin
would not experience any effects on red blood cells
Answer: b. would have a decreased number of red blood cells
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21. If a patient has pernicious anemia, the inability of the body to absorb vitamin B12, the patient ________.
would have reduced blood iron levels
would have a decreased number of red blood cells
would have increased levels of hemoglobin
would not experience any effects on red blood cells
Answer: b. would have a decreased number of red blood cells
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22. An elevated neutrophil count would be indicative of ________.
an allergic reaction
a cancer
an acute bacterial infection
a parasitic infection
Answer: c. an acute bacterial infection
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23. An elevated neutrophil count would be indicative of ________.
an allergic reaction
a cancer
an acute bacterial infection
a parasitic infection
Answer: c. an acute bacterial infection
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24. Antihistamines counter the actions of which white blood cells?
Neutrophils
Lymphocytes
Basophils
Eosinophils
Answer: c. Basophils
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25. Antihistamines counter the actions of which white blood cells?
Neutrophils
Lymphocytes
Basophils
Eosinophils
Answer: c. Basophils
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26. Leukemia is a general descriptor for which of the following disorders?
An abnormally low white blood cell count
Overproduction of abnormal leukocytes
Elevated counts of normal neutrophils
Overproduction of abnormal erythrocytes
Answer: b. Overproduction of abnormal leukocytes
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27. Leukemia is a general descriptor for which of the following disorders?
An abnormally low white blood cell count
Overproduction of abnormal leukocytes
Elevated counts of normal neutrophils
Overproduction of abnormal erythrocytes
Answer: b. Overproduction of abnormal leukocytes
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28. A ________ is the progenitor of platelets.
thrombopoietin
thrombocyte
megakaryocyte
thrombocytoblast
Answer: c. megakaryocyte
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29. A ________ is the progenitor of platelets.
thrombopoietin
thrombocyte
megakaryocyte
thrombocytoblast
Answer: c. megakaryocyte
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30. Why don't platelets form plugs in undamaged vessels?
Platelets aren't formed until vessel damage occurs.
Only contact of platelets with exposed collagen fibers and von Willebrand factor causes them to be sticky and form plugs.
Plugs do form, but are removed by macrophages.
Platelets don't form plugs, it is the megakaryocytes that form the plugs.
Answer: b. Only contact of platelets with exposed collagen fibers and von Willebrand factor causes them to be sticky and form plugs.
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31. Why don't platelets form plugs in undamaged vessels?
Platelets aren't formed until vessel damage occurs.
Only contact of platelets with exposed collagen fibers and von Willebrand factor causes them to be sticky and form plugs.
Plugs do form, but are removed by macrophages.
Platelets don't form plugs, it is the megakaryocytes that form the plugs.
Answer: b. Only contact of platelets with exposed collagen fibers and von Willebrand factor causes them to be sticky and form plugs.
© 2013 Pearson Education, Inc. 31

32. Activation of the extrinsic pathway of coagulation requires exposure of the blood to _________.
collagen
tissue factor III
prothrombin activator
serotonin
Answer: b. tissue factor III
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33. Activation of the extrinsic pathway of coagulation requires exposure of the blood to _________.
collagen
tissue factor III
prothrombin activator
serotonin
Answer: b. tissue factor III
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34. Why doesn't a clot fill the entire vasculature system once it has started forming?
Rapid blood flow washes away and dilutes activated clotting factors.
Thrombin is inactivated by antithrombin III if it enters the general circulation.
Both a and b occur.
Neither a nor b occurs.
Answer: c. Both a and b occur.
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35. Why doesn't a clot fill the entire vasculature system once it has started forming?
Rapid blood flow washes away and dilutes activated clotting factors.
Thrombin is inactivated by antithrombin III if it enters the general circulation.
Both a and b occur.
Neither a nor b occurs.
Answer: c. Both a and b occur.
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36. An injectable heparin medication might be prescribed for a patient who ________.
is at risk for embolism
has thrombocytopenia
is a hemophiliac
has a deficiency in a clotting factor
Answer: a. is at risk for embolism
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37. An injectable heparin medication might be prescribed for a patient who ________.
is at risk for embolism
has thrombocytopenia
is a hemophiliac
has a deficiency in a clotting factor
Answer: a. is at risk for embolism
© 2013 Pearson Education, Inc. 37

38. Which bleeding disorder is caused by any condition that suppresses or destroys the red bone marrow?
Hemophilia A
Thrombocytopenia
Hemophilia C
Disseminated intravascular coagulation
Answer: b. Thrombocytopenia
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39. Which bleeding disorder is caused by any condition that suppresses or destroys the red bone marrow?
Hemophilia A
Thrombocytopenia
Hemophilia C
Disseminated intravascular coagulation
Answer: b. Thrombocytopenia
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40. Which agglutinins are naturally present in someone who is B+?
Anti-A
Anti-B
Anti-A + Anti-Rh
Anti-B + Anti-Rh
Answer: a. Anti-A
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41. Which agglutinins are naturally present in someone who is B+?
Anti-A
Anti-B
Anti-A + Anti-Rh
Anti-B + Anti-Rh
Answer: a. Anti-A
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42. What is the preferred choice for restoring blood volume?
Purified human serum albumin
Hetastarch
Dextran
Normal saline
Answer: d. Normal saline
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43. What is the preferred choice for restoring blood volume?
Purified human serum albumin
Hetastarch
Dextran
Normal saline
Answer: d. Normal saline
© 2013 Pearson Education, Inc. 43