Question 1

What substance is a precursor for prostacyclin?

Accepted Answer

A)   von Willebrand factor
B)   arachidonic acid
C)   thromboxane A2
D)   thrombin
E)   fibrinF) A) and E)
G) A) and D)

Question 2

You're looking at your patient's complete blood count (CBC)  and notice that he has a normal hematocrit but low hemoglobin. What is the most likely cause for this result?

Accepted Answer

A)   hemolytic anemia
B)   iron -deficiency anemia
C)   hemorrhagic anemia
D)   renal anemia
E)   aplastic anemiaF) A) and B)
G) B) and E)

Question 3

Calcium is required for formation of a blood clot.

Accepted Answer

A) True 
 B)False

Question 4

Olympic athletes train in Colorado Springs, Colorado because this location is at high altitude and near the 14,000 foot Pikes Peak. Which statement best describes why this location was chosen?

Accepted Answer

A)   The thin air allows for less resistance when biking or running and, therefore, the athletes can run and bike faster, which builds up their endurance for future races
B)   The thinner air causes it to be easier to move into and out of the lungs, which leads to higher oxygen transport.
C)   Oxygen levels are low and therefore fewer red blood cells are available, which puts more physiological stress on the body. This leads to a greater efficiency of getting oxygen to the tissues.
D)   Oxygen levels are low and, therefore, more red blood cells are produced, giving the athletes an advantage when competing at lower altitudes.
E)   The concentration difference for getting air into the lungs is greater at high altitudes.F) A) and B)
G) A) and D)

Question 5

Which of the following is the first step of hemostasis?

Accepted Answer

A)   formation of a blood clot
B)   secretion of histamine
C)   formation of a fibrin clot
D)   formation of a platelet plug
E)   vascular spasmF) A) and D)
G) A) and E)

Question 6

What is the stoppage of bleeding called?

Accepted Answer

A)   homeostasis
B)   vasculostasis
C)   fibrinostasis
D)   hemostasis
E)   erythrostasisF) A) and B)
G) All of the above

Question 7

Pernicious anemia is associated with which of the following?

Accepted Answer

A)   inadequate bilirubin levels
B)   abnormal hemoglobin
C)   insufficient vitamin B12
D)   damage to the bone marrow
E)   bleedingF) B) and D)
G) A) and E)

Question 8

Which of the following statements is NOT accurate with respect to erythrocytes?

Accepted Answer

A)   They lack nuclei.
B)   They lack mitochondria.
C)   They transport oxygen and carbon dioxide.
D)   They migrate into infected regions of tissue.
E)   They contain large amounts of hemoglobin.F) B) and C)
G) B) and E)

Question 9

Which white blood cell is a phagocyte that also releases toxins from its cytoplasmic granules?

Accepted Answer

A)   neutrophil
B)   basophil
C)   lymphocyte
D)   monocyte
E)   eosinophilF) B) and E)
G) A) and E)

Question 10

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) D) and E)
G) C) and D)

Question 11

Platelets become sticky when exposed to which of the following?

Accepted Answer

A)   fibrin
B)   von Willebrand factor
C)   thrombin
D)   prostacyclin
E)   serotoninF) A) and B)
G) None of the above

Question 12

Protein C inhibits both the intrinsic and extrinsic clotting pathways.

Accepted Answer

A) True 
 B)False

Question 13

Thrombin not only promotes clotting at injury sites, but also indirectly inhibits clotting in healthy tissue.

Accepted Answer

A) True 
 B)False

Question 14

Vitamin K is necessary for blood clot formation because it activates the extrinsic pathway.

Accepted Answer

A) True 
 B)False

Question 15

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

Accepted Answer

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

Question 16

The breakdown of bilirubin imparts the color in both feces and urine.

Accepted Answer

A) True 
 B)False

Question 17

What type of leukocyte defends against parasitic infections?

Accepted Answer

A)   basophils
B)   monocytes
C)   eosinophils
D)   erythrocytes
E)   neutrophilsF) A) and D)
G) A) and C)

Question 18

What is defined as a decrease in the oxygen -carrying capacity of blood?

Accepted Answer

A)   hypoxia
B)   hematocrit
C)   hemolysis
D)   polycythemia
E)   anemiaF) A) and B)
G) A) and C)

Question 19

Glucose is transported in blood dissolved in plasma.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following leukocytes are phagocytes?

Accepted Answer

A)   monocytes, lymphocytes, and macrophages
B)   neutrophils, eosinophils, and basophils
C)   monocytes, lymphocytes, and megakaryocytes
D)   neutrophils, eosinophils, and monocytes
E)   monocytes, lymphocytes, and reticulocytesF) B) and D)
G) A) and B)

Exam 15: The Cardiovascular System: Blood

Which of the following leukocytes are phagocytes?

Correct AnswerverifiedShow Answer

What is defined as a decrease in the oxygen -carrying capacity of blood?

Correct AnswerverifiedShow Answer

You're looking at your patient's complete blood count (CBC) and notice that he has a normal hematocrit but low hemoglobin. What is the most likely cause for this result?

Correct AnswerverifiedShow Answer

Olympic athletes train in Colorado Springs, Colorado because this location is at high altitude and near the 14,000 foot Pikes Peak. Which statement best describes why this location was chosen?

Correct AnswerverifiedShow Answer

Which of the following is the first step of hemostasis?

Correct AnswerverifiedShow Answer

What is the stoppage of bleeding called?

Correct AnswerverifiedShow Answer

What substance is a precursor for prostacyclin?

Correct AnswerverifiedShow Answer

Pernicious anemia is associated with which of the following?

Correct AnswerverifiedShow Answer

Protein C inhibits both the intrinsic and extrinsic clotting pathways.

Correct AnswerverifiedShow Answer

Thrombin not only promotes clotting at injury sites, but also indirectly inhibits clotting in healthy tissue.

Correct AnswerverifiedShow Answer

Glucose is transported in blood dissolved in plasma.

Correct AnswerverifiedShow Answer

Which of the following statements is NOT accurate with respect to erythrocytes?

Correct AnswerverifiedShow Answer

Vitamin K is necessary for blood clot formation because it activates the extrinsic pathway.

Correct AnswerverifiedShow Answer

The breakdown of bilirubin imparts the color in both feces and urine.

Correct AnswerverifiedShow Answer

Calcium is required for formation of a blood clot.

Correct AnswerverifiedShow Answer

Which white blood cell is a phagocyte that also releases toxins from its cytoplasmic granules?

Correct AnswerverifiedShow Answer

What type of leukocyte defends against parasitic infections?

Correct AnswerverifiedShow Answer

Which of the following leukocytes is a phagocyte?

Correct AnswerverifiedShow Answer

Platelets become sticky when exposed to which of the following?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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