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The condition which a clot is lodged in an unbroken blood vessel is ____________________.

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Platelets are derived directly from ____.


A) lymphoid stem cells
B) megakaryocytes
C) erythrocytes
D) pluripotent stem cells
E) myeloid stem cells

F) A) and E)
G) None of the above

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Which blood type is the universal donor?


A) A only
B) B only
C) AB
D) O
E) Both AB and O

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

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The kidney releases ____________________ to stimulate red blood cell formation.

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Which disorder is similar in nature to sickle-cell anemia?


A) malaria
B) leukemia
C) aplastic anemia
D) thalassemia
E) toxemia

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

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Which factor promotes oxygen release from hemoglobin at the tissue?


A) low blood pressure
B) low oxygen gradient
C) low temperature
D) low carbon dioxide concentration
E) low plasma pH

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

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A(n)____________________ stem cell gives rise to other types of stem cells.

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Which blood test can be influenced by altitude?


A) BUN
B) lipid profile
C) hemoglobin concentration
D) PT
E) TSH

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

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Plasma consists mostly of ____.


A) salts
B) cells
C) proteins
D) water
E) cell fragments

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

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Each hemoglobin molecule can carry how many oxygen molecules?


A) 4
B) 6
C) 8
D) 10
E) 12

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

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On average, how many red blood cells are there in a microliter of blood?


A) 5,000
B) 50,000
C) 500,000
D) 5,000,000
E) 50,000,000

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

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