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BOC Hematology Exam-Questions with Correct Answers/Verified

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BOC Hematology Exam-Questions with Correct Answers/Verified

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  • October 27, 2024
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MikeHarris
BOC Hematology Exam-Questions with Correct Answers/Verified
The light-colored zone adjacent to the nucleus in a plasmacyte is the:
A. Ribosome
B. Chromatin
C. Mitochondria

D. Golgi area - ✔✔Correct Answer: D


The following are compounds formed in the synthesis of heme:
1. coproporphyrinogen
2. porphobilinogen
3. uroporphyrinogen
4. protoporphyrinogen
A. 4,3,1,2
B. 2,3,1,4
C. 4,2,3,1

D. 2,1,3,4 - ✔✔Correct Answer: B


The majority of the iron in an adult is found as a constituent of:
A. hemoglobin
B. hemosiderin
C. myoglobin

D. transferrin - ✔✔Correct Answer: A


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 reduction of heme iron

D. provide energy for membrane maintenance - ✔✔Correct Answer: B

,Correct Answer: B - ✔✔Refer to the following illustration:


Which curve represents the production of alpha polypeptide chains of hemoglobin?


A. A
B. B
C. C
D. D



Correct Answer: D - ✔✔Refer to the following illustration:


Which curve represents the production of beta polypeptide chains of hemoglobin?


A. B
B. C
C. E
D. D



Correct Answer: C - ✔✔Refer to the following illustration:


Which curve represents the production of gamma polypeptide chains of hemoglobin?


A. A
B. B
C. C
D. D



Correct Answer: D - ✔✔Refer to the following illustration:

,Which curve represents the production of delta polypeptide chains of hemoglobin?


A. B
B. C
C. D
D. E



Correct Answer: A - ✔✔Refer to the following illustration:


Which curve represents the production of epsilon polypeptide chains of hemoglobin?


A. A
B. B
C. C
D. D


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 - ✔✔Correct Answer: D


In which of the following disease states are teardrop cells and abnormal platelets most
characteristically seen?
A. hemolytic anemia
B. multiple myeloma
C. G-6-PD deficiency

D. myeloid metaplasia - ✔✔Correct Answer: D

, The characteristic erythrocyte found in pernicious anemia is:
A. microcytic
B. spherocytic
C. hypochromic

D. macrocytic - ✔✔Correct Answer: D


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 - ✔✔Correct Answer: D


After the 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 - ✔✔Correct Answer: B


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. denatured hemoglobin inclusions that are readily removed by the spleen - ✔✔Correct
Answer: D


Hemolysis in paroxysmal nocturnal hemoglobinuria (PNH) is:
A. temperature-dependent
B. complement-independent
C. antibody-mediated

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