MLT Hematology Test Part1

12 Questions | Total Attempts: 15137

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MLT Hematology Test Part1

This is part one of the hematology section of the ascp certification exam


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Questions and Answers
  • 1. 
    • A. 

      Ribosome

    • B. 

      Chromatin

    • C. 

      Mitochondria

    • D. 

      Transferrin

  • 2. 
    • A. 

      Hemoglobin

    • B. 

      Hemosiderin

    • C. 

      Myoglobin

    • D. 

      Transferrin

  • 3. 
    The main function of the hexose monophosphate shunt in the erythrocyte is to:
    • A. 

      Regulate the level of 2,3 dpg

    • B. 

      Provide reduced glutathione to prevent oxidation of hemoglobin

    • C. 

      Prevent the reductoin of heme iron

    • D. 

      Provide energy for membrane maintenance

  • 4. 
    In order for hemoglobin to combine reversibly with oxygen the iron must be :
    • A. 

      Complexed with haptoglobin

    • B. 

      Freely circulating in the cytoplasm

    • C. 

      Attached to transferrin

    • D. 

      In the ferrous state

  • 5. 
    In which of the following disease states are teardrop cells and abnormal platelets most characteristically seen?
    • A. 

      Hemolytic anemia

    • B. 

      Multiple myeloma

    • C. 

      G-6PD deficiency

    • D. 

      Myeloid metaplasia

  • 6. 
    In the normal adult the spleen acts as a site for:
    • A. 

      Storage of red blood cells

    • B. 

      Production of red blood cells

    • C. 

      Synthesis of erythropoietin

    • D. 

      Removal of imperfect and aging cells

  • 7. 
    After removal of red blood cells from the circulation hemoglobin is broken down into:
    • A. 

      Iron,porphyrin, and amino acids

    • B. 

      Iron, protoporphyrin, and globin

    • C. 

      Heme, protoporphyrin, and amino acids

    • D. 

      Heme, hemosiderin, and globin

  • 8. 
    Heinz bodies are:
    • A. 

      Readily identified with polychrome stains

    • B. 

      Rarely found in glucose-6-phosphate dehydrogenase deficient erythrocytes

    • C. 

      Closely associated with spherocytes

    • D. 

      Denatureed hemoglobin inclusiond that are readily removed by the spleen

  • 9. 
    Cells for the transport of O2 and CO2 are:
    • A. 

      Granulocytes

    • B. 

      Lymphocytes

    • C. 

      Erythrocytes

    • D. 

      Thrombocytes

  • 10. 
    Erythropoietin acts to:
    • A. 

      Shorten the replication time of the granulocytes

    • B. 

      Stimulate RNA synthesis of erythroid cells

    • C. 

      Increase colony-stimulating factors produced by the B-lymphocytes

    • D. 

      Decrease the release of marrow reticulocytes

  • 11. 
    • A. 

      Tear drop cells

    • B. 

      Target cells

    • C. 

      Spherocytes

    • D. 

      Sickle cells

  • 12. 
    Which of the following characteristics are common to hereditary spherocytosis, hereditary elliptocytosis, hereditary stomatocytosis, and paroxysmal nocturnal hemoglobinuria?
    • A. 

      Autosomal dominant inheritance

    • B. 

      Red cell membrane defects

    • C. 

      Positive direct antiglobulin test

    • D. 

      Measured platelet count