Practice Questions on Blood

1. The term that refers to the percentage of packed erythrocytes per unit volume of blood is the:
1. Differential Count
2. Hemoglobin
3. Hematocrit
4. Hemopoiesis Answer:C

2. Which of the following is a circulating blood cell that is capable of differentiating into a plasma cell?

1. Neutrophil
2. Basophil
3. B lymphocyte
4. T lymphocyte
5. Monocyte
Answer:C
3. The component of plasma responsible for maintaining the osmotic pressure of blood is:
1. Plasmin
2. Albumin
3. Fibrinogen
4. Gamma globulin
5. Plasminogen activator Answer:B
4. Erythrocytes:
1. Enter the circulation only after becoming fully mature
2. Undergo mitosis in the circulation in response to erythropoietin
3. Are removed from the circulation after about 120 days by macrophages
in the spleen, liver, and bone marrow 4. Have mitochondria and are capable of oxidative respiration
5. None of the above
Answer:C
5. Plasma is:
1. Blood that has no red blood cells
2. The liquid portion of blood including the clotting factors
3. The liquid portion of blood minus the clotting factors
4. The proteins of blood
Answer:B
6. Excessive destruction of erythrocytes is characteristic of:
1. Thalassemia
2. Aplastic anemia
3. Pernicious anemia
4. Hemolytic anemia
Answer:D
7. A hematocrit of 80 would be considered:
1. Polycythemia
2. Anemia
3. Thrombocytopenia
4. Leukemia
Answer:A
8. During hemoglobin recycling in the spleen, heme is initially converted into:
1. Bilirubin
2. Stercobilin
3. Urobilin
4. Urobilinogen
Answer:A
9. The Fe3+ portion of the hemoglobin is eventually:
1. Converted into transferrin in the large intestine
2. Converted into ferritin in the kidney
3. Excreted from the body
4. All of the above
5. None of the above
Answer:E
10. An increased neutrophil count is typically associated with:
1. An ongoing bacterial infection
2. Neutropenia
3. Allergic reactions
4. An ongoing parasitic infection
Answer:A
11. ________________ eventually become macrophages.
1. Neutrophils
2. Basophils
3. Monocytes
4. Macrocytes
5. Lymphocytes
Answer:C
12. Hypoxia induces the kidneys to produce:
1. Platelets
2. Thrombopoietin
3. Erythrocytes
4. Erythropoietin
5. Intrinsic Factor

Answer:D

13. The first phase of hemostasis is:
1. Separation of globin and heme
2. Activation of Prothrombin
3. Platelet aggregation
4. Vascular spasm
Answer:D
14. Which of the following activates platelets during hemostasis?
1. Eosinophil degranulation
2. Exposed collagen or endothelial basement membrane
3. Fibrin thread formation
4. Thromboplastin
Answer:B
15. The phase of coagulation that begins with exposed endothelial collagen is the:
1. Extrinsic pathway
2. Intrinsic pathway
3. Common pathway
4. Fibrin stabilization phase
Answer:B
16. An individual with type B+ blood has which of the following antibodies in their blood?
1. anti-A and anti-O
2. anti-B and anti-Rh
3. anti-A
4. anti-B
5. anti-Rh
Answer:C
17. Which of the following blood cells have some properties similar to connective tissue mast cells?
1. Basophils
2. Neutrophils
3. Eosinophils
4. Lymphocytes>
5. Monocytes
Answer:A
18. Examples of erythrocytes can be found in almost all histological sections. Therefore, knowledge of the approximate diameter of a red blood cell is useful because it can serve as a built-in ruler on the tissue section. Which of the following best describes the diameter of red cells?
1. 5-6um
2. 6-7um
3. 7-8um
4. 8-9um
5. 9-10um
Answer:C
MATCHING. Select from the following terms. Some may be used more than once or not at all!
1. Lymphocytes
2. Monocytes
3. Eosinophils
4. Basophils
5. Neutrophils
6. All of the above
19. Leukocytes
20. Least numerous of the circulating leukocytes
21. First line of cellular defense against a bacterial invasion
22. Found in the buffy coat in a hematocrit tube
23. Most numerous of the circulating leukocytes
24. Specific granules contain heparin and histamine
25. Capable of diapedesis
26. May be found in loose connective tissue F,D,E,F,E,D,E,F.
27. Together, leukocytes and platelets comprise approximately _____ percent of total blood volume.
1. 1
2. 15
3. 23
4. 10
A
28. Which of the following might trigger erythropoiesis?
1. Increased tissue demand for O2
2. Decreased tissue demand for O2
3. An increased number of RBCs
4. Moving from a high altitude to a lower altitude
A
29. An individual who is blood type AB negative:
1. Can receive any blood type in moderate amounts except that with the Rh antigen
2. Can donate to all blood types in moderate amounts
3. Can receive types A, B, and AB but not type O
4. Can donate to types A, B, and AB but not to type O
A
30. Which of the following is not a phase of hemostasis?
1. Vascular spasm
2. Fibrinolysis
3. Platelet plug formation
4. Coagulation
B
31. Which of the following is characteristic of all leukocytes?
1. They are nucleated
2. They have lobed mitochondria
3. They have cytoplasmic granules
4. They are phagocytic

A
32. Which sequence is correct for the following events?
1. Fibrinogen --> Fibrin
2. Clot retraction
3. Formation of thromboplastin
4. Prothrombin --> Thrombin
1. 1,2,3,4
2. 3,4,1,2
3. 4,3,1,2
4. 3,2,1,4

B
33. Platelets:
1. Stick to the damaged area of a blood vessel and help to seal the break
2. Have a lifespan of about 120 days
3. Are the precursors of leukocytes
4. Have multiple nuclei
5. Two of the above

A 34. Fred's blood type was determined to be AB+. Which of the following is true of Fred's blood?
1. There are no antibodies to antigens A, B, or Rh in the plasma
2. The RBCs contain the A and B antigens on their nuclei
3. The blood totally lacks the Rh factor
4. He cannot receive blood from someone who is type O negative

a 35. All of the following conditions impair coagulation except:
1. Vascular spasm
2. Vitamin K deficiency
3. Severe hypocalcaemia
4. Liver disease

a 36. The rarest leukocyte is the __________________. Basophil
37. When monocytes migrate into the interstitial space, they are called ________________.
Macrophages
38. Hemoglobin is composed of ____ polypeptide chains.
4
39. All leukocytes share the following characteristics except:
1. Ability to perform diapedesis
2. Disease-Fighting
3. Distorted, Lobed Nuclei
4. More active in connective tissues than in blood

c 40. What is the difference between a thrombus and an embolus?
1. One occurs within the cerebral
bloodstream while the other does not
2. Emboli occur only once
3. An embolus cannot contribute to the occlusion of a coronary vessel while a thrombus cannot contribute to a blockage of a cranial arteriole
4. A thrombus must travel to become an embolus

d 41. The plasma component that forms the fibrous skeleton of a clot is:
1. Platelets
2. Fibrinogen
3. Thromboplastin
4. Thrombin

b 42. Rank the following in order of abundance:
1. Erythrocyte
2. Basophil
3. Monocyte
4. Platelet
1. 1,2,3,4
2. 1,4,3,2
3. 1,4,2,3
4. 1,3,4,2
b 43. If Jack has type O+ blood, then which of the following is true?

1. He has no agglutinins at all 2. He has no A agglutinogens
3. He has no Rh agglutinogens
4. None of the above
b 44. Anemia is:
1. Any condition in which the body has an abnormal oxygen carrying capacity
2. Only a genetic disorder
3. Marked by a massive increase in blood viscosity
4. Never the result of nutrient deficiency
5. 2 of the above

a 45. Which of the following is not involved in coagulation?
1. Gamma globulins
2. Calcium
3. Vitamin K
4. Prothrombin

a 46. Which of the following people would have the most anti-B antibodies?
1. An adult male with B+ blood
2. An adult male with O- blood
3. An adult female with B-blood
4. A female child with AB+ blood

b 47. If a newborn was blood type O+, which of the following would his blood not contain?
1. Anti-B antibodies
2. Anti-A antibodies
3. Anti-Rh antibodies
4. Erythrocytes which express neither the A nor the B antigen

c 48. The % of blood volume occupied by packed red blood cells is the ______________.

Hematocrit

49. Which of the following is not true?

1. Blood is a connective tissue
2. Blood contains both a cellular and a non-cellular portion
3. None of the blood cells contain true nuclei
4. The pH of blood is typically between 7.35 and 7.45

c 50. In a sample of centrifuged blood, the layer immediately beneath the plasma:
1. Can contain neutrophils
2. Can contain platelets
3. Is called the buffy coat
4. All of the above

d 51. Water makes up what % of the plasma?
1. 90
2. 70
3. 50
4. 30

a 52. If you observed a white blood cell with a light microscope and noticed the presence of granules, how would you classify it?
1. Granulocyte
2. Agranulocyte
3. It could be either of the above

a 53. Which of the following is true of lymphocytes?
1. They contain a nucleus that occupies only a small portion of the cell
2. They are divided into T and B lymphocytes
3. The majority of them are found within the blood
4. They specific granules visible under the light microscope
5. All of the above
6. 2 of the above

b 54. The process by which white blood cells leave capillaries is called __________.

Diapedesis

55. Normally, eosinophils constitute what % of white blood cells?

3% 56. Basophils, eosinophils, and neutrophils are all:
1. Leukocytes
2. Granulocytes
3. Phagocytes
4. All of the above
d

57. As the liver's ability to function decreases, yellow discoloration of the sclera __________. Increases

58. In the blood, iron is primarily transported by:
1. Hemosiderin
2. Ferritin
3. Stercobilin
4. Transferrin

d 59. The stem cells that give rise to all red blood cells, white blood cells, and platelets are known as:
1. Hemocytoblasts
2. Reticulocytes
3. Hemophilioblasts
4. Myeloid stem cells

a 60. Which of the following anemia types is an example of a genetic disorder?
1. Sickle cell
2. Iron deficiency
3. Thalassemia
4. Hemorrhagic
5. 2 of the above

e 61. Which granulocyte is specialized for killing parasitic worms?

Eosinophil
62. Why is vitamin B12 necessary for erythropoiesis?

1. It's necessary for the ejection of the RBC nucleus
2. It's necessary for DNA synthesis
3. It's essential for protein aggregation
4. It's essential for oxygen's nucleophilic reaction with hemoglobin

b 63. If you had 10 RBCs each containing 100 molecules of hemoglobin, how many molecules of oxygen could these RBCs transport?

10 RBCs x 100 Hb molecules/RBC x 4 O2 molecules/Hb

= 4000 molecules of Oxygen

64. Complications of aplastic anemia generally include:
1. Suppressed immunity
2. Impaired formation of all formed elements
3. Clotting deficiencies
4. All of the above
Answer:d

65. Which of the following females does not have to be concerned with erythroblastosis fetalis?
1. A female with blood type O-
2. A female with blood type O+
3. A female with blood type AB-
4. A female with blood type B+
5. More than one of the above
Answer:e
66. As the hematocrit increases, plasma erythropoietin levels will ________________. Answer:Decreases
67. After receiving a transfusion of type AB blood, the plasma [bilirubin] of a type A patient will ________________.
Answer:Increases
68. As liver disease progresses, free plasma [bilirubin]...
Answer:Increases
69. As dietary vitamin K levels decrease below the recommended mini
Answer:Increases