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Exam 17: Blood

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Question 41

Multiple Choice

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A patient's hematocrit shows an unusually large buffy coat. What is a likely cause for this?

A) thrombocytopenia
B) lipidemia
C) anemia
D) severe infection

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

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Question 42

Multiple Choice

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A lack of intrinsic factor, leading to a deficiency of vitamin B12 and causing an appearance of large pale cells called macrocytes, is characteristic of_________ .

A) pernicious anemia
B) aplastic anemia
C) polycythemia
D) sickle-cell anemia

E) A) and D)
F) B) and C)

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Question 43

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Positive chemotaxis is a feedback system that signals leukocyte migration into damaged areas.

Blood doping refers to the practice of_________ before an athletic event.

Hemorrhagic anemias result from blood loss.

A man of Mediterranean ancestry goes to his doctor with the following symptoms. He is very tired all of the time. He has difficulty catching his breath after even mild exercise. His doctor orders the following tests: CBC, hematocrit, differential WBC count, and hemoglobin electrophoresis. The tests show immature erythrocytes, fragile erythrocytes, and less than 2 million RBCs per cubic millimeter. What would be a tentative diagnosis and suggested treatment?

Leukocytes displaying red cytoplasmic granules when treated with Wright's stain are most likely_________ .

Granulocytes called neutrophils are phagocytic and are the most numerous of all white blood cell types.

Lipids (either nutrients or hormones) are insoluble in water but are found traveling in the plasma of the blood. Which of the following is the most likely explanation for this?

The process of fibrinolysis disposes of bacteria when healing has occurred.

Leukopenia is an abnormally low number of leukocytes.

A 68-year-old male is admitted to the hospital for emphysema. He is hypoxic and his lab tests reveal low oxygen levels. His hematocrit is 65%. The physician has told him that he has a type of polycythemia in which he has an increased number of erythrocytes circulating in his bloodstream. The patient tells the nurse that he does not understand what that means. How would the nurse explain this in terms the patient could understand?

Which of the choices below is the parent cell for all formed elements of blood?

Explain why blood is classified as a connective tissue.

The cells responsible for producing platelets are called _________.

Fetal hemoglobin has a higher affinity for oxygen than does adult hemoglobin.

If a patient with type B blood received a transfusion of AB blood, which of the following would occur?

Clotting factor activation turns clotting factors into enzymes.

Which body activity would be most affected if a patient lacked an adequate number of erythrocytes (anemia) ?

All of the following can be expected with polycythemia EXCEPT_________.