Question 1

For a person whose hematocrit is 45%, in which choice below are the components of blood correctly ranked in order of decreasing percent volume?

Accepted Answer

A)   WBCs, plasma, RBCs
B)   RBCs, WBCs, plasma
C)   Plasma, RBCs, WBCs
D)   Plasma, WBCs, RBCs
E)   WBCs, RBCs, plasmaF) None of the above
G) B) and C)

Question 2

Which of the following is (are)  associated with decreased hematopoiesis?

Accepted Answer

A)   Hemorrhage
B)   Vitamin B12 deficiency
C)   Iron deficiency anemia
D)   Restricted blood flow to the kidney
E)   Both "Vitamin B12 deficiency" and "Iron deficiency anemia" are correct.F) All of the above
G) B) and C)

Question 3

Which of the following is NOT true of plasma?

Accepted Answer

A)   Plasma is about 91% water.
B)   Plasma is a colloid.
C)   Plasma volume can change drastically.
D)   The color of plasma is yellow.E) C) and D)
F) A) and B)

Question 4

In the platelet release reaction,

Accepted Answer

A)   factor XII is activated.
B)   ADP and thromboxanes stimulate other platelets to become activated.
C)   activated platelets are connected by fibrinogen.
D)   prostaglandin production is inhibited.
E)   platelets convert to fibrin.F) C) and D)
G) A) and C)

Question 5

The hematocrit is

Accepted Answer

A)   an estimate of blood flow/hour.
B)   the number of WBCs per mm3.
C)   the amount of hemoglobin by weight in the blood.
D)   the percentage of RBCs in a given volume of blood.
E)   the number of RBCs in the body.F) B) and D)
G) A) and E)

Question 6

In which of the following situations might Rh incompatibility develop?

Accepted Answer

A)   Mother is Rh negative; fetus is Rh negative
B)   Mother is Rh positive; father is Rh positive
C)   Mother is Rh negative; fetus is Rh positive
D)   Mother is Rh positive; fetus is Rh negative
E)   Mother is Rh positive; fetus is Rh positiveF) B) and C)
G) A) and D)

Question 7

Which of the following would lead to increased erythropoiesis?

Accepted Answer

A)   Increased environmental O2 levels
B)   Increased erythropoietin levels
C)   Increased blood pH
D)   Increased blood pressure
E)   Increased CO2 levelsF) D) and E)
G) A) and D)

Question 8

Match the substance necessary for clotting with its particular role.
-Vitamin K

Accepted Answer

A)  A mixture of lipoproteins released from injured tissue
B)  Converts prothrombin to thrombin
C)  The insoluble protein that forms the network of the clot
D)  Needed by the liver to produce prothrombin
E)  Fibrin-stabilizing factorF) B) and C)
G) C) and D)

Question 9

Fibrinolysis is responsible for

Accepted Answer

A)   activation of the intrinsic pathway of coagulation.
B)   activation of the extrinsic pathway of coagulation.
C)   clot retraction.
D)   clot dissolution.
E)   clot consolidation.F) B) and D)
G) C) and D)

Question 10

Which type of gene expression occurs when a person has type AB blood?

Accepted Answer

A)   Homozygous dominant
B)   Homozygous recessive
C)   Incomplete dominance
D)   CodominanceE) B) and C)
F) None of the above

Question 11

A person with type O blood should receive a blood transfusion from a donor with

Accepted Answer

A)   type A blood.
B)   type B blood.
C)   type O blood.
D)   type AB blood.
E)   any type of blood.F) B) and C)
G) C) and D)

Question 12

Agglutination of red blood cells means

Accepted Answer

A)   they rupture.
B)   they form a clot.
C)   they clump together.
D)   they lose their nucleus.
E)   they bump into each other.F) A) and B)
G) A) and C)

Question 13

The combination of hemoglobin and carbon dioxide is ________.

Accepted Answer

A)   carboxyhemoglobin
B)   oxyhemoglobin
C)   deoxyhemoglobin
D)   carbaminohemoglobinE) A) and B)
F) A) and C)

Question 14

When a person is transfused with the wrong blood type,

Accepted Answer

A)   the white cells clot.
B)   hemorrhaging occurs.
C)   fibrinogen is activated.
D)   the erythrocytes agglutinate.
E)   they bleed to death.F) None of the above
G) A) and D)

Question 15

Which of the following cell types is an immature red blood cell?

Accepted Answer

A)   Erythrocyte
B)   Reticulocyte
C)   Thrombocyte
D)   Monocyte
E)   LeukocyteF) All of the above
G) A) and B)

Question 16

Which of the following statements regarding leukocytes is TRUE?

Accepted Answer

A)   Leukocytes have no nucleus.
B)   Leukocytes play a role in oxygen transport.
C)   Leukocytes are the largest of the formed elements.
D)   Leukocytes are only fragments of cells.
E)   There is only one kind of leukocyte.F) A) and D)
G) A) and C)

Question 17

In the extrinsic pathway, damaged tissues release ________.

Accepted Answer

A)   activated factor V
B)   calcium
C)   factor VII
D)   thromboplastin (tissue factor III) 
E)   factor XIIF) A) and E)
G) A) and C)

Question 18

All of the following describe ways that blood helps maintain homeostasis, except ________.

Accepted Answer

A)   stabilizing body fluids
B)   transporting carbon dioxide
C)   limiting the spread of pathogens
D)   transporting nutrients
E)   secretion of neuropeptidesF) B) and D)
G) B) and C)

Question 19

Which of the following accurately describes thromboplastin?

Accepted Answer

A)   A compound released by healed tissues that initiates clot dissolution
B)   A compound that keeps platelets from sticking to the endothelium
C)   A precursor to prothrombin
D)   A compound released by damaged tissue that initiates the intrinsic clotting pathway
E)   A compound released by damaged tissue that initiates the extrinsic clotting pathwayF) A) and E)
G) A) and C)

Question 20

Which vitamin is necessary to produce many clotting factors in the liver?

Accepted Answer

A)   Vitamin C
B)   Vitamin K
C)   Vitamin D
D)   Vitamin B3E) A) and D)
F) C) and D)

Exam 19: Cardiovascular System: Blood

Which of the following statements regarding leukocytes is TRUE?

Correct AnswerverifiedShow Answer

The hematocrit is

Correct AnswerverifiedShow Answer

Which of the following cell types is an immature red blood cell?

Correct AnswerverifiedShow Answer

Agglutination of red blood cells means

Correct AnswerverifiedShow Answer

Which type of gene expression occurs when a person has type AB blood?

Correct AnswerverifiedShow Answer

Fibrinolysis is responsible for

Correct AnswerverifiedShow Answer

Which of the following is NOT true of plasma?

Correct AnswerverifiedShow Answer

Match the substance necessary for clotting with its particular role. -Vitamin K

Correct AnswerverifiedShow Answer

All of the following describe ways that blood helps maintain homeostasis, except ________.

Correct AnswerverifiedShow Answer

Which of the following would lead to increased erythropoiesis?

Correct AnswerverifiedShow Answer

In the extrinsic pathway, damaged tissues release ________.

Correct AnswerverifiedShow Answer

For a person whose hematocrit is 45%, in which choice below are the components of blood correctly ranked in order of decreasing percent volume?

Correct AnswerverifiedShow Answer

The combination of hemoglobin and carbon dioxide is ________.

Correct AnswerverifiedShow Answer

Which of the following is (are) associated with decreased hematopoiesis?

Correct AnswerverifiedShow Answer

Which vitamin is necessary to produce many clotting factors in the liver?

Correct AnswerverifiedShow Answer

When a person is transfused with the wrong blood type,

Correct AnswerverifiedShow Answer

In which of the following situations might Rh incompatibility develop?

Correct AnswerverifiedShow Answer

A person with type O blood should receive a blood transfusion from a donor with

Correct AnswerverifiedShow Answer

Which of the following accurately describes thromboplastin?

Correct AnswerverifiedShow Answer

In the platelet release reaction,

Correct AnswerverifiedShow Answer

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