Question 1

You notice on your patient's complete blood count (CBC) that she has a very low basophil count. Which statement best describes this abnormal result?

Accepted Answer

A)  This is a common side effect of rheumatoid arthritis.
B)  Sickle cell anemia may have inhibited basophil production.
C)  The basophils may have been killed by a flu virus.
D)  This may be due to an acute allergic reaction.
E)  It can be an indication of a microbial infection.F) All of the above
G) A) and B)

Question 2

Hemophilia is a genetic clotting disorder usually characterized by the absence of what clotting factor?

Accepted Answer

A)  factor XIII
B)  factor VIII
C)  factor X
D)  thrombin
E)  von Willebrand factorF) A) and C)
G) B) and C)

Question 3

Your patient has been admitted for an asthma attack. In what type of white blood cell would you expect to see an elevated count?

Accepted Answer

A)  basophils
B)  monocytes
C)  eosinophils
D)  neutrophils
E)  lymphocytesF) All of the above
G) C) and E)

Question 4

What is a hematocrit measuring?

Accepted Answer

A)  the amount of oxygen that can be transported by blood
B)  the percentage of blood that is comprised of plasma
C)  the percentage of blood that is comprised of red and white blood cells
D)  the percentage of blood that is comprised of red blood cells only
E)  the amount of hemoglobin in bloodF) A) and B)
G) A) and E)

Question 5

Which of the following leukocytes is a phagocyte?

Accepted Answer

A)  neutrophils only
B)  basophils only
C)  monocytes only
D)  both neutrophils and basophils
E)  both neutrophils and monocytesF) C) and E)
G) A) and C)

Question 6

Which white blood cell is a non- phagocytic granulocyte? 17)

Accepted Answer

A)  eosinophil
B)  neutrophil
C)  basophil
D)  lymphocyte
E)  monocyteF) None of the above
G) A) and B)

Question 7

Following centrifuging of blood, the middle layer contains platelets and leukocytes, and is called the buffy coat.

Accepted Answer

A) True 
 B)False

Question 8

The iron- containing ring in hemoglobin is called _ _ and it binds _.

Accepted Answer

A)  globin : oxygen
B)  heme : oxygen
C)  spectrin : carbon dioxide
D)  heme : carbon dioxide
E)  heme : carbon dioxide or oxygenF) B) and D)
G) A) and D)

Question 9

A fibrin clot can occur in the absence of platelet aggregation.

Accepted Answer

A) True 
 B)False

Question 10

Which chemical formed from arachidonic acid facilitates platelet plug formation?

Accepted Answer

A)  von Willebrand factor
B)  thromboxane A2
C)  thrombin
D)  fibrin
E)  arachidonic acidF) C) and E)
G) C) and D)

Question 11

A normal hematocrit is approximately what value?

Accepted Answer

A)  75
B)  10
C)  90
D)  25
E)  45F) C) and E)
G) A) and E)

Question 12

What enzyme catalyzes the conversion of carbon dioxide and water to carbonic acid, and where is this enzyme located?

Accepted Answer

A)  carbonic anhydrase, in erythrocytes
B)  carbonic dehydrogenase, in hemoglobin
C)  carbonic anhydrase, in hemoglobin
D)  carbonic anhydrase, in plasma
E)  carbonic dehydrogenase, in plasmaF) A) and E)
G) B) and C)

Question 13

High doses of aspirin can stimulate clotting by inhibiting the synthesis of

Accepted Answer

A)  tissue plasminogen activator.
B)  prostacyclin.
C)  thrombomodulin.
D)  plasmin.
E)  protein C.F) A) and E)
G) D) and E)

Question 14

Which statement best describes the function of globulins?

Accepted Answer

A)  They provide the nutrients needed to replicate erythrocytes.
B)  They aid in the structural form of the erythrocyte.
C)  They transport lipids, playing a role in clotting and defending the body against foreign substances.
D)  They primarily affect the movement of fluid into capillaries by creating an osmotic gradient.
E)  They are the key substance in the formation of blood clots.F) A) and D)
G) B) and D)

Question 15

Most of the blood volume consists of erythrocytes.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following leukocytes are phagocytes?

Accepted Answer

A)  monocytes, lymphocytes, and reticulocytes
B)  neutrophils, eosinophils, and monocytes
C)  monocytes, lymphocytes, and megakaryocytes
D)  monocytes, lymphocytes, and macrophages
E)  neutrophils, eosinophils, and basophilsF) All of the above
G) C) and E)

Question 17

Both the intrinsic and extrinsic pathways converge on activation of what factor, which then activates prothrombin?

Accepted Answer

A)  factor IV
B)  factor X
C)  tissue factor
D)  platelet factor
E)  calciumF) C) and E)
G) A) and B)

Question 18

Oxygen and carbon dioxide are poorly soluble in plasma so they require erythrocytes for their transport in blood. Describe how erythrocytes transport these gases.

Accepted Answer

Erythrocytes contain two proteins necess...

Question 19

Your patient is an elderly woman who has been treated with prednisone (a steroid) for years to treat her rheumatoid arthritis. In what type of white blood cell would you expect to see an elevated count?

Accepted Answer

A)  basophils
B)  neutrophils
C)  lymphocytes
D)  monocytes
E)  eosinophilsF) A) and E)
G) C) and D)

Question 20

What is the life span of an erythrocyte?

Accepted Answer

A)  1 day
B)  10 days
C)  30 days
D)  120 days
E)  They last for as long as you live.F) B) and D)
G) B) and E)

Exam 15: The Cardiovascular System: Blood

Which chemical formed from arachidonic acid facilitates platelet plug formation?

Correct AnswerverifiedShow Answer

Which statement best describes the function of globulins?

Correct AnswerverifiedShow Answer

Most of the blood volume consists of erythrocytes.

Correct AnswerverifiedShow Answer

Your patient is an elderly woman who has been treated with prednisone (a steroid) for years to treat her rheumatoid arthritis. In what type of white blood cell would you expect to see an elevated count?

Correct AnswerverifiedShow Answer

What is a hematocrit measuring?

Correct AnswerverifiedShow Answer

Both the intrinsic and extrinsic pathways converge on activation of what factor, which then activates prothrombin?

Correct AnswerverifiedShow Answer

You notice on your patient's complete blood count (CBC) that she has a very low basophil count. Which statement best describes this abnormal result?

Correct AnswerverifiedShow Answer

What is the life span of an erythrocyte?

Correct AnswerverifiedShow Answer

A fibrin clot can occur in the absence of platelet aggregation.

Correct AnswerverifiedShow Answer

Following centrifuging of blood, the middle layer contains platelets and leukocytes, and is called the buffy coat.

Correct AnswerverifiedShow Answer

A normal hematocrit is approximately what value?

Correct AnswerverifiedShow Answer

Oxygen and carbon dioxide are poorly soluble in plasma so they require erythrocytes for their transport in blood. Describe how erythrocytes transport these gases.

Correct AnswerverifiedErythrocytes contain two proteins necess...View AnswerShow Answer

High doses of aspirin can stimulate clotting by inhibiting the synthesis of

Correct AnswerverifiedShow Answer

Which white blood cell is a non- phagocytic granulocyte? 17)

Correct AnswerverifiedShow Answer

The iron- containing ring in hemoglobin is called _ _ and it binds _.

Correct AnswerverifiedShow Answer

Hemophilia is a genetic clotting disorder usually characterized by the absence of what clotting factor?

Correct AnswerverifiedShow Answer

What enzyme catalyzes the conversion of carbon dioxide and water to carbonic acid, and where is this enzyme located?

Correct AnswerverifiedShow Answer

Which of the following leukocytes are phagocytes?

Correct AnswerverifiedShow Answer

Which of the following leukocytes is a phagocyte?

Correct AnswerverifiedShow Answer

Your patient has been admitted for an asthma attack. In what type of white blood cell would you expect to see an elevated count?

Correct AnswerverifiedShow Answer

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Erythrocytes contain two proteins necess...
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