MMSC433 Exam 1 questions with correct answers

MMSC433 Exam 1 questions with |\ |\ |\ |\ |\




correct answers |\




In this disorder, target cells, stomatocytes, burr cells are present,
|\ |\ |\ |\ |\ |\ |\ |\ |\


"puddled" hemoglobin, and the MCHC is increased with a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


decreased osmotic fragility. |\ |\




A. Hereditary Elliptocytosis
|\ |\




B. Southeastern Asian Ovalocytosis
|\ |\ |\




C. Hereditary Spherocytosis
|\ |\




D. Hereditary Xerocytosis - CORRECT ANSWERS ✔✔hereditary
|\ |\ |\ |\ |\ |\ |\


xerocytosis


All of the following are true regarding Erythropoietic
|\ |\ |\ |\ |\ |\ |\ |\


Protoporphyria, except: |\




A. ferrocheletase is deficient
|\ |\ |\




B. patients exhibit photosensitivity
|\ |\ |\




C. inheritance is autosomal dominant
|\ |\ |\ |\




D. enzyme deficiency is Uroporphyrinogen III synthase - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\


ANSWERS ✔✔enzyme deficiency is uroporphyrinogen III synthase
|\ |\ |\ |\ |\ |\ |\




All of the following is true regarding folate deficiency, except:
|\ |\ |\ |\ |\ |\ |\ |\ |\




A. Hgb is decreased
|\ |\ |\




B. white blood cells are increased
|\ |\ |\ |\ |\




C. RBC folate is decreased
|\ |\ |\ |\

,D. neutrophils are hypersegmented - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\


✔✔white blood cells are increased |\ |\ |\ |\




All of the following is true regarding Stage 1 of iron deficiency,
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


except:
A. serum ferritin levels are normal
|\ |\ |\ |\ |\




B. serum ferritin levels are low
|\ |\ |\ |\ |\




C. patients are devoid of symptoms of anemia
|\ |\ |\ |\ |\ |\ |\ |\




D. RBC development is normal - CORRECT ANSWERS ✔✔serum
|\ |\ |\ |\ |\ |\ |\ |\ |\


ferritin levels are normal
|\ |\ |\




The test that is most useful in differentiating Fanconi's Anemia
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


from other causes of pancytopenia is:
|\ |\ |\ |\ |\




A. bone marrow biopsy
|\ |\ |\




B. flow cytometric analysis of CD55
|\ |\ |\ |\ |\




C. Ham acidified serum test
|\ |\ |\ |\




D. Diepoxybutane-induced chromosome breakage - CORRECT
|\ |\ |\ |\ |\ |\


ANSWERS ✔✔diepoxybutane-induced chromosome breakage
|\ |\ |\




All of the following are associated with sideroblastic anemia
|\ |\ |\ |\ |\ |\ |\ |\ |\


except:
A. increased red cell protoporphyrin
|\ |\ |\ |\




B. dimorphic blood picture
|\ |\ |\




C. ringed sideroblasts
|\ |\




D. increased serum iron - CORRECT ANSWERS ✔✔increased red
|\ |\ |\ |\ |\ |\ |\ |\ |\


cell protoporphyrin
|\

, Plasmodium ovale typically invades only: |\ |\ |\ |\




A. prorubricytes
|\




B. reticulocytes
|\




C. metarubricytes
|\




D. rubriblasts - CORRECT ANSWERS ✔✔reticulocytes
|\ |\ |\ |\ |\




Which of the following stains blue with Prussian blue stain?
|\ |\ |\ |\ |\ |\ |\ |\ |\




A. apoferritin
|\




B. ferritin
|\




C. transferrin
|\




D. hemosiderin - CORRECT ANSWERS ✔✔hemosiderin
|\ |\ |\ |\ |\




How are malaria parasites identified in the hematology
|\ |\ |\ |\ |\ |\ |\ |\


laboratory?
A. thick and thin peripheral blood smears
|\ |\ |\ |\ |\ |\




B. blood cultures
|\ |\




C. PCR
|\




D. indirect fluorescent test - CORRECT ANSWERS ✔✔thick and
|\ |\ |\ |\ |\ |\ |\ |\ |\


thin peripheral blood smears
|\ |\ |\




Why is G6PD important for normal red cell survival?
|\ |\ |\ |\ |\ |\ |\ |\




A. alpha chains are produced in excess in absence
|\ |\ |\ |\ |\ |\ |\ |\ |\




B. hemoglobin oxygen affinity is increased in its absence
|\ |\ |\ |\ |\ |\ |\ |\ |\