Self-test Answers

1. Which of the following is incorrect?

B. Erythropoietin stimulates white blood cell (WBC) production

2. Which of the following is/are correct?

E. All of the above

3. Which of the following is incorrect?

D. Feline hemoglobin is less susceptible to oxidation than canine hemoglobin

4. The proper term for poikilocytes with 2 - 10 blunt elongate finger-like surface projections is:

A. Acanthocytes

5. Which of the following is/are correct?

C. Crenation is more prominent in films made from EDTA-antico agulated blood than in films made from fresh non-anticoagulated blood.

6. Regenerative anemias:

E. All of the above

7. Which type of anemia best fits a reticulocyte count of 100,000 reticulocytes/ul and a decreased total plasma protein?

A. Blood loss anemias

8. Conditions which can cause immune-mediated hemolytic disease include:

E. All of the above

9. Which of the following is correct?

A. Maturation defect anemias have nonregenerative peripheral blood patterns but erythroid hyperplasia in the bone marrow.

10. Which of the following is/are incorrect about polycythemia?

E. Is most commonly caused by polycythemia vera

11. Laboratory features of relative polycythemia may include:

E. All of the above

12. Which of the following is correct?

E. All of the above

13. Which of the following can affect the neutrophil count in peripheral blood?

E. All of the above

14. Mechanisms of neutropenia include:

E. All of the above

15. Causes of neutrophilia include all of the following except:

E. Endotoxemia

16. Which of the following best describes a leukogram characterized by a mild leukocytosis with mature neutrophilia, lymphopenia, eosinopenia, and mild monocytosis?

A. Stress leukogram

17. Which of the following are incorrect about eosinophils?

E. Eosinophils have long circulating half-lives.

18. Causes of peripheral eosinophilia may include all of the following except:

C. Whipworm infection

19. Specific macrophage functions include:

E. All of the above

20. Monocytosis can indicate:

E. All of the above

21. Which of the following is correct?

B. Monocytes are released into the peripheral blood as immature cells.

22. Peripheral lymphocytes:

C. Have the unique ability to recirculate

23. Causes of severe lymphopenia (<700 lymphocytes/ul) include all of the following except:

A. Epinephrine release

24. Lymphocytosis in dogs may be caused by all of the following except:

A. Excitement

25. A canine patient is suspected of ingesting a coumarin-based rodenticide. Of the following tests, which should show evidence of abnormality first?

A. Prothrombin Time (PT)

26. The most appropriate test to determine hemorrhagic potential in a patient with known von Willebrand's factor (vWf) deficiency is

C. The buccal mucosal bleeding time (BMBT).

27. A canine patient has a prolonged buccal mucosal bleeding time (BMBT), appropriate platelet numbers, and appropriate PT and APTT tests. This suggests

A. An endothelial cell or platelet functional problem.

28. An elderly male dog has clinical evidence of hemorrhagic diatheses following splenectomy for hemangiosarcoma. The platelet count is moderately reduced, fibrinogen concentration is also reduced. APTT is prolonged. Fibrin degradation products (FDPs) are increased. This constellation of laboratory test results suggests

C. DIC.

29. Which of the following are consistent with inflammatory leukograms?

E. All of the above

30. Which characteristic of stress leukograms is most consistent:?

A. Lymphocyte counts between 750/ul and 1500/ul