MLT Hematology Test Part1
This is part one of the hematology section of the ascp certification exam
- 1.The light colored zone adjacent to the nucleus in a plasmacyte is the:
- 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
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