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The percent fraction of formed elements relative to whole blood is the


A) viscosity.
B) specific gravity.
C) packed volume.
D) hematocrit.
E) differential cell count.

F) B) and E)
G) A) and E)

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A sign of thrombocytopenia would be


A) a drop in oxygen-carrying capacity.
B) allergic reactions.
C) bacterial infections.
D) excessive clotting.
E) bleeding.

F) B) and D)
G) A) and B)

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The level of erythropoietin in the blood would rise due to all of the following except


A) anemia.
B) high altitude.
C) as a consequence of hemorrhage.
D) periods of fasting.
E) when blood flow to the kidneys is disrupted.

F) D) and E)
G) A) and E)

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   Figure 19-1 The Origins and Differentiation of Formed Elements Use Figure 19-1 to answer the following questions: -Identify the cell labeled  2.  A) lymphocyte B) eosinophil C) basophil D) neutrophil E) monocyte Figure 19-1 The Origins and Differentiation of Formed Elements Use Figure 19-1 to answer the following questions: -Identify the cell labeled "2."


A) lymphocyte
B) eosinophil
C) basophil
D) neutrophil
E) monocyte

F) A) and D)
G) C) and D)

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Pernicious anemia caused by a lack of intrinsic factor is specifically treated by


A) oral doses of iron.
B) injections of iron.
C) oral doses of vitamin B₁₂.
D) injections of vitamin B₁₂.
E) blood transfusion.

F) B) and D)
G) None of the above

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Soon after donating 0.5 liters of blood,one would expect


A) an increased reticulocyte count.
B) an increased platelet count.
C) an increased erythrocyte count.
D) an increased neutrophil count.
E) increased levels of clotting factors.

F) A) and D)
G) A) and B)

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Which of the following are common sources of vitamin K?


A) green vegetables
B) organ meats
C) whole grains
D) intestinal bacteria
E) All of answers are correct.

F) B) and E)
G) A) and B)

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The average life span of a red blood cell is


A) 24 hours.
B) 1 month.
C) 4 months.
D) about 1 year.
E) many years.

F) A) and B)
G) C) and E)

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Plasma thromboplastin is a factor in the ________ pathway.


A) extrinsic
B) intrinsic
C) common
D) retraction
E) fibrinolytic

F) A) and E)
G) A) and D)

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In adults,the only site of red blood cell production,and the primary site of white blood cell formation,is the


A) liver.
B) spleen.
C) thymus.
D) red bone marrow.
E) yellow bone marrow.

F) A) and B)
G) B) and E)

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Thyroid-binding globulin is an example of which kind of plasma protein?


A) metalloprotein
B) steroid-binding
C) hormone-binding
D) apolipoprotein
E) transport albumin

F) C) and E)
G) A) and B)

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When checking the efficiency of gas exchange,it may be necessary to draw a blood sample from


A) the heart.
B) the lungs.
C) an artery.
D) a vein.
E) capillaries.

F) A) and B)
G) C) and D)

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The condition in which the oxygen-carrying capacity of blood is reduced,owing to a low blood hemoglobin concentration,is called


A) thrombocytopenia.
B) leukopenia.
C) polycythemia.
D) anemia.
E) leukocytosis.

F) A) and B)
G) A) and C)

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A substance that activates plasminogen might be useful to


A) cause clots to form faster.
B) cause clot dissolution to proceed faster.
C) initiate clot formation.
D) mimic heparin.
E) recruit neutrophils to an infection.

F) D) and E)
G) All of the above

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Areas in a vessel wall where large quantities of lipid accumulate are called


A) thrombi.
B) emboli.
C) plaques.
D) clots.
E) occlusions.

F) None of the above
G) C) and D)

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________ is responsible for the RBC's ability to transport oxygen and CO₂.


A) Hemoglobin
B) Fibrinogen
C) Albumin
D) Transferrin
E) Ferritin

F) B) and C)
G) A) and C)

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The intrinsic pathway of coagulation is activated by the


A) sticking of platelets to each other.
B) activation of Factor XII by platelet factors.
C) release of tissue factor (Factor III) by damaged endothelium.
D) release of heparin from the liver.
E) conversion of prothrombin to thrombin.

F) A) and C)
G) C) and E)

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White blood cells that are increased in allergic individuals are the


A) neutrophils.
B) eosinophils.
C) platelets.
D) lymphocytes.
E) monocytes.

F) A) and B)
G) A) and C)

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