1.7 Flashcards
Repeated phlebotomy in patients with polycythemia vera (PV) may lead to the development of:
A. Folic acid deficiency
B. Sideroblastic anemia
C. Iron deficiency anemia
D. Hemolytic anemia
C. Iron deficiency anemia
In essential thrombocythemia, the platelets are:
A. Increased in number and functionally abnormal
B. Normal in number and functionally abnormal
C. Decreased in number and functional
D. Decreased in number and functionally abnormal
A. Increased in number and functionally abnormal
Which of the following cells is considered pathognomonic for Hodgkin’s disease?
A. Niemann-Pick cells
B. Reactive lymphocytes
C. Flame cells
D. Reed-Sternberg cells
D. Reed-Sternberg cells
In myelofibrosis, the characteristic abnormal red blood cell morphology is that of:
A. Target cells
B. Schistocytes
C. Teardrop cells
D. Ovalocytes
C. Teardrop cells
PV is characterized by:
A. Increased plasma volume
B. Pancytopenia
C. Decreased oxygen saturation
D. Absolute increase in total red cell mass
D. Absolute increase in total red cell mass
Features of secondary polycythemia include all of the following except:
A. Splenomegaly
B. Decreased oxygen saturation
C. Increased red cell mass
D. Increased erythropoietin
A. Splenomegaly
The erythrocytosis seen in relative polycythemia occurs because of:
A. Decreased arterial oxygen saturation
B. Decreased plasma volume of circulating blood
C. Increased erythropoietin levels
D. Increased erythropoiesis in the bone marrow
B. Decreased plasma volume of circulating blood
In PV, what is characteristically seen in the peripheral blood?
A. Panmyelosis
B. Pancytosis
C. Pancytopenia
D. Panhyperplasia
B. Pancytosis
The leukocyte alkaline phosphatase (LAP) stain on a patient gives the following results
10(0) 48(1+) 38(2+) 3(3+) 1(4+)
Calculate the LAP score.
A. 100
B. 117
C. 137
D. 252
C. 137
CML is distinguished from leukemoid reaction by which of the following?
A. CML: low LAP; leukemoid: high LAP
B. CML: high LAP; leukemoid: low LAP
C. CML: high WBC; leukemoid: normal WBC
D. CML: high WBC; leukemoid: higher WBC
A. CML: low LAP; leukemoid: high LAP
Which of the following occurs in idiopathic myelofibrosis (IMF)?
A. Myeloid metaplasia
B. Leukoerythroblastosis
C. Fibrosis of the bone marrow
D. All of these options
D. All of these options
What influence does the Philadelphia (Ph1) chromosome have on the prognosis of patients with chronic myelocytic leukemia?
A. It is not predictive
B.The prognosis is better if Ph1 is present
C.The prognosis is worse if Ph1 is present
D.The disease usually transforms into AML when Ph1 is present
B.The prognosis is better if Ph1 is present
Which of the following is (are) commonly found in CML?
A. Many teardrop-shaped cells
B. Intense LAP staining
C. A decrease in granulocytes
D. An increase in basophils
D. An increase in basophils
In which of the following conditions does LAP show the least activity?
A. Leukemoid reactions
B. Idiopathic myelofibrosis
C. PV
D. CML
D. CML
A striking feature of the peripheral blood of a patient with CML is a:
A. Profusion of bizarre blast cells
B. Normal number of typical granulocytes
C. Presence of granulocytes at different stages of development
D. Pancytopenia
C. Presence of granulocytes at different stages of development
Which of the following is often associated with CML but not with AML?
A. Infections
B. WBCs greater than 20.0 × 109/L
C. Hemorrhage
D. Splenomegaly
D. Splenomegaly
Multiple myeloma and Waldenström’s macroglobulinemia have all the following in common except:
A. Monoclonal gammopathy
B. Hyperviscosity of the blood
C. Bence-Jones protein in the urine
D. Osteolytic lesions
D. Osteolytic lesions
What is the characteristic finding seen in the peripheral smear of a patient with multiple myeloma?
A. Microcytic hypochromic cells
B. Intracellular inclusion bodies
C. Rouleaux
D. Hypersegmented neutrophils
C. Rouleaux
All of the following are associated with the diagnosis of multiple myeloma except:
A. Marrow plasmacytosis
B. Lytic bone lesions
C. Serum and/or urine M component (monoclonal
protein)
D. Philadelphia chromosome
D. Philadelphia chromosome
Multiple myeloma is most difficult to distinguish from:
A. Chronic lymphocytic leukemia
B. Acute myelogenous leukemia
C. Benign monoclonal gammopathy
D. Benign adenoma
C. Benign monoclonal gammopathy
The pathology of multiple myeloma includes which of the following?
A. Expanding plasma cell mass
B. Overproduction of monoclonal immunoglobulins
C. Production of osteoclast activating factor (OAF) and other cytokines
D. All of these options
D. All of these options
Waldenström’s macroglobulinemia is a malignancy of the:
A. Lymphoplasmacytoid cells
B. Adrenal cortex
C. Myeloblastic cell lines
D. Erythroid cell precursors
A. Lymphoplasmacytoid cells
Cells that exhibit a positive stain with acid phosphatase and are not inhibited with tartaric acid are characteristically seen in:
A. Infectious mononucleosis
B. Infectious lymphocytosis
C. Hairy cell leukemia
D. T-cell acute lymphoblastic leukemia
C. Hairy cell leukemia
The JAK2(V617F) mutation may be positive in all of the following chronic myeloproliferative disorders except:
A. Essential thrombocythemia
B. Idiopathic myelofibrosis
C. PV
D. CML
D. CML
All of the following are major criteria for the 2008 WHO diagnostic criteria for essential thrombocythemia except:
A. Platelet count >450 × 109/L
B. Megakaryocyte proliferation with large and mature morphology, and no or little granulocyte or erythroid proliferation
C. Demonstration of JAK2(V617F) or other clonal marker
D. Sustained platelet count >600 × 109/L
D. Sustained platelet count >600 × 109/L
