Erythrocyte Morphology and Inclusions

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Erythrocyte Morphology and Inclusions
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Select the ONE answer that is BEST in each case.

The average diameter of a normal erythrocyte is _____ mm.

1. The average diameter of a normal erythrocyte is _____mm.
A. 5.2
B. 6.4
C. 7.2
D. 8.4
. _____ Macrocytic

A. Variation in erythrocyte size
B. Larger than normal
C. Smaller than normal
D. Variation in erythrocyte shape

. _____ Microcytic

A. Variation in erythrocyte size
B. Larger than normal
C. Smaller than normal
D. Variation in erythrocyte shape

_____ Anisocytosis

A. Variation in erythrocyte size
B. Larger than normal
C. Smaller than normal
D. Variation in erythrocyte shape

_____ Poikilocytosis

A. Variation in erythrocyte size
B. Larger than normal
C. Smaller than normal
D. Variation in erythrocyte shape

_____ Normal erythrocyte

A. Megalocyte
B. Drepanocyte
C. Codocyte
D. Discocyte

_____ Oval macrocyte

A. Megalocyte
B. Drepanocyte
C. Codocyte
D. Discocyte

_____ Target cell

A. Megalocyte
B. Drepanocyte
C. Codocyte
D. Discocyte

_____ Sickle cell

A. Megalocyte
B. Drepanocyte
C. Codocyte
D. Discocyte

_____ Echinocytes

A. Short, scalloped, or spike-like projections that are regularly distributed around the cell
B. Fragments of erythrocytes
C. The scooped-out part of an erythrocyte that remains after a blister cell ruptures
D. Compact round shape

_____ Helmet cells

A. Short, scalloped, or spike-like projections that are regularly distributed around the cell
B. Fragments of erythrocytes
C. The scooped-out part of an erythrocyte that remains after a blister cell ruptures
D. Compact round shape

_____ Schistocytes

A. Short, scalloped, or spike-like projections that are regularly distributed around the cell
B. Fragments of erythrocytes
C. The scooped-out part of an erythrocyte that remains after a blister cell ruptures
D. Compact round shape

_____ Spherocytes

A. Short, scalloped, or spike-like projections that are regularly distributed around the cell
B. Fragments of erythrocytes
C. The scooped-out part of an erythrocyte that remains after a blister cell ruptures
D. Compact round shape

_____ Associated with a defect in nuclear maturation

A. Microcytes
B. Sickle cells
C. Macrocytes
D. Acanthocytes

15. _____ Associated with a decrease in hemoglobin synthesis

A. Microcytes
B. Sickle cells
C. Macrocytes
D. Acanthocytes

16. _____ Represents an imbalance between erythrocytic and plasma lipids

A. Microcytes
B. Sickle cells
C. Macrocytes
D. Acanthocytes

17. _____ Results from the gelation of polymerized deoxygenated Hb S
A. Microcytes
B. Sickle cells
C. Macrocytes
D. Acanthocytes
Polychromatophilia is
A. a blue-colored erythrocyte when stained with Wright stain
B. caused by diffusely distributed RNA in the cytoplasm
C. equivalent to a reticulocyte when stained with a supravital stain
D. all of the above
19. _____ Basophilic stippling

A. DNA
B. Precipitated denatured hemoglobin
C. Granules composed of ribosomes and RNA
D. Aggregates of iron, mitochondria, and ribosomes

_____ Howell-Jolly bodies

A. DNA
B. Precipitated denatured hemoglobin
C. Granules composed of ribosomes and RNA
D. Aggregates of iron, mitochondria, and ribosomes

21. _____ Pappenheimer bodies

A. DNA
B. Precipitated denatured hemoglobin
C. Granules composed of ribosomes and RNA
D. Aggregates of iron, mitochondria, and ribosomes

22. _____ Heinz bodies

A. DNA
B. Precipitated denatured hemoglobin
C. Granules composed of ribosomes and RNA
D. Aggregates of iron, mitochondria, and ribosomes

23. Which of the following is the term for erythrocytes resembling a stack of coins on thin sections of a peripheral blood smear?
A. Anisocytosis
B. Poikilocytosis
C. Agglutination
D. Rouleaux formation
24. _____ Macrocytes

A. Iron deficiency anemia
B. Abetalipoproteinemia
C. Pernicious anemia
D. No related disease state

25. _____ Microcytes

A. Iron deficiency anemia
B. Abetalipoproteinemia
C. Pernicious anemia
D. No related disease state

26. _____ Acanthocytes

A. Iron deficiency anemia
B. Abetalipoproteinemia
C. Pernicious anemia
D. No related disease state

27. _____ Echinocytes
A. Iron deficiency anemia
B. Abetalipoproteinemia
C. Pernicious anemia
D. No related disease state
28. _____ Leptocytes

A. Hepatic disorders
B. Hemolytic disease of the fetus and newborn
C. Hemoglobinopathies
D. Pernicious anemia

29. _____ Microspherocytes

A. Hepatic disorders
B. Hemolytic disease of the fetus and newborn
C. Hemoglobinopathies
D. Pernicious anemia

30. _____ Codocytes

A. Hepatic disorders
B. Hemolytic disease of the fetus and newborn
C. Hemoglobinopathies
D. Pernicious anemia

31. _____ Dacryocytes
A. Hepatic disorders
B. Hemolytic disease of the fetus and newborn
C. Hemoglobinopathies
D. Pernicious anemia
32. _____ Basophilic stippling

A. Pernicious anemia
B. G6PD deficiency
C. Iron loading anemia
D. Lead poisoning

33. _____ Howell-Jolly bodies

A. Pernicious anemia
B. G6PD deficiency
C. Iron loading anemia
D. Lead poisoning

34. _____ Heinz bodies

A. Pernicious anemia
B. G6PD deficiency
C. Iron loading anemia
D. Lead poisoning

35. _____ Pappenheimer bodies
A. Pernicious anemia
B. G6PD deficiency
C. Iron loading anemia
D. Lead poisoning
36. _____ Plasmodium vivax

A. The schizont contains 6 to 12 merozoites; generally abundant in hematin granules; may contain Ziemann stippling.
B. The most predominant species worldwide; 12 to 24 merozoites; may contain Schüffner dots or granules.
C. Infected erythrocytes may be enlarged and oval shaped; may contain Schüffner dots; 6 to 14 merozoites in the schizont.
D. Young trophozoites and gametocytes are generally the only stage seen in peripheral blood; gametocytes appear as crescent- or sausage-shaped structures in erythrocytes; Maurer dots may be present.

37. _____ Plasmodium falciparum

A. The schizont contains 6 to 12 merozoites; generally abundant in hematin granules; may contain Ziemann stippling.
B. The most predominant species worldwide; 12 to 24 merozoites; may contain Schüffner dots or granules.
C. Infected erythrocytes may be enlarged and oval shaped; may contain Schüffner dots; 6 to 14 merozoites in the schizont.
D. Young trophozoites and gametocytes are generally the only stage seen in peripheral blood; gametocytes appear as crescent- or sausage-shaped structures in erythrocytes; Maurer dots may be present.

38. _____ Plasmodium malariae

A. The schizont contains 6 to 12 merozoites; generally abundant in hematin granules; may contain Ziemann stippling.
B. The most predominant species worldwide; 12 to 24 merozoites; may contain Schüffner dots or granules.
C. Infected erythrocytes may be enlarged and oval shaped; may contain Schüffner dots; 6 to 14 merozoites in the schizont.
D. Young trophozoites and gametocytes are generally the only stage seen in peripheral blood; gametocytes appear as crescent- or sausage-shaped structures in erythrocytes; Maurer dots may be present.

39. _____ Plasmodium ovale

A. The schizont contains 6 to 12 merozoites; generally abundant in hematin granules; may contain Ziemann stippling.
B. The most predominant species worldwide; 12 to 24 merozoites; may contain Schüffner dots or granules.
C. Infected erythrocytes may be enlarged and oval shaped; may contain Schüffner dots; 6 to 14 merozoites in the schizont.
D. Young trophozoites and gametocytes are generally the only stage seen in peripheral blood; gametocytes appear as crescent- or sausage-shaped structures in erythrocytes; Maurer dots may be present.

40. Nantucket Island is an endemic area for
A. P. vivax
B. P. falciparum
C. Babesiosis
D. all of the above
41. Babesiosis infection shares many of the same symptoms as
A. Plasmodium falciparum malaria
B. Lyme disease
C. Ehrlichia
D. None of the above

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