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Hematology

Authored by Philip Marquez

Professional Development

Professional Development

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Hematology
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53 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The type of nuclear reproduction seen in the megakaryocytes is:

polypoid division

endomitosis

meiosis

binary fission

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In differentiating the maturation stages of the megakaryocytic cells, emphasis should be placed on the ___.

cytoplasmic appearance

number of nuclei

chromatin structure

size of the cell

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Identify this platelet precursor:

*Single nucleus, fine chromatin, nucleoli

*Absence of cytoplasmic granules

*No visible thrombocytes

megakaryoblast

promegakaryocyte

megakaryocyte

metamegakaryocyte

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Identify this platelet precursor:

*Four or more nuclei

*Aggregated cytoplasmic granules

*With visible thrombocytes

megakaryoblast

Promegakaryocyte

megakaryocyte

metamegakaryocyte

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An OIF containing 100 RBCs should have ____ platelets, whereas field with 200 RBCs should have ___ platelets.

3 to 10; 5 to 20

8 to 20; 20 to 50

5 to 20; 10 to 40

20 to 40; 50 to 100

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Patients refractory to platelet transfusion:

Patients with aplastic anemia or acute leukemia who have received long-term platelet support, may developed platelet alloimmunization

Most alloantibodies are directed against HLA antigens

Leukocyte-poor-platelet concentrates may alleviate the problem for some recipients

all of these

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Patients requiring extensive transfusions develop thrombocytopenia by two mechanism: acute blood loss and dilution pf their own platelet pool. Extensive blood transfusion often is accompanied by thrombocytopenia, the degree of which is ____ proportional to the number of units transfused.

directly

inversely

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