Hematology Comprehensive Exam questions and correct answers
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Course
Hematology Comprehensive
Institution
Hematology Comprehensive
Megaloblastic anemias are commonly due to iron deficiency. - correct answer False
A differential leukocyte count revealed 225 nucleated RBC's/100 WBC's. The total leukocyte count was 7,000/µl. What is the corrected total leukocyte count? - correct answer 2154
Using the following data, calc...
Megaloblastic anemias are commonly due to iron deficiency. - correct answer False
A differential leukocyte count revealed 225 nucleated RBC's/100 WBC's. The total leukocyte count was
7,000/µl. What is the corrected total leukocyte count? - correct answer 2154
All of the following can be found in red blood cells as inclusions except - correct answer Auer rod
This cell with pink cytoplasm pale neutrophilic granules and a dense nucleus with an indentation less
than one half its diameter is called a: - correct answer metamyelocyte
The function of von Willebrand Factor is to - correct answer cause the adhesion of platelets to the wall
of damaged vessels
Match the test with the purpose of the test. Each answer may be used only once. - correct answer -
Plasminogen- measures inactive form of fibrinolysis activator
-Platelet aggregation- measures the ability of platelets to adhere to other platelets
-APTT- screens abnormalities in the intrinsic coagulation pathway
-Thrombin time- evaluates quantitative and qualitative fibrinogen defects
-D-Dimer- detects level of fibrin fragments
Which organ removes erythrocyte inclusions without destroying the cell? - correct answer Spleen
A patient presents with an unspecified coagulopathy. The PT, APTT, and thrombin time (TT) are all
prolonged. Fibrinogen is below normal levels. Adsorbed plasma and aged serum fail to correct the
prolonged times. The clinical laboratory scientist considers either disseminated intravascular coagulation
, or advanced liver disease as possible explanations for the coagulopathy. In the absence of any other
relevant clinical information, the most useful procedure to perform in making the differential diagnosis is
a - correct answer
A manual WBC count was performed on an EDTA sample. It was diluted 1:100 and a total of 75 WBC's
were counted in all 9 squares of the hemacytometer. What is the leukocyte count? - correct answer 8.3
x 109/L
The definition of hemostasis is the - correct answer termination of bleeding following a traumatic injury
The test used to determine the erythrocyte response and potential of the bone marrow is - correct
answer reticulocyte count
An abnormal APTT and normal PT would be consistent with all of the following factor deficiencies except
factor - correct answer X
Hemophilia A is caused by a genetically inherited deficiency of - correct answer Factor VIII
A patient has a coagulation workup with the following results:
What is the most probable factor deficiency? - correct answer VIII
What findings would be most useful for distinguishing AML from ALL? - correct answer large blast cells
with prominent nucleoli; Auer rods may be present; positive peroxidase and Sudan black; negative TdT
Characteristics of chronic leukemias include large numbers of immature cells and long survival rate -
correct answer False
The most common hemoglobinopathy resulting from an amino acid substitution in the globin chain is -
correct answer
The LAP score - correct answer is useful in differentiating leukemoid states from leukemia
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