Medical Technology Board Examination Review Notes on Hematology

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HEMATOLOGY                                                                          

1. Which of the following is not an appropriate safety practice?
a. Disposing of needles in biohazard, puncture-proof containers
b. Frequent hand-washing
c. Sterilizing lancets for reuse
d. Keeping food out of the same areas as specimens
2. Factors involved with initial activation of the coagulation system and that require contact with a negatively charged surface for their activity belong to the following group of factors:
a. Prothrombin group
b. Fibrinogen group
c. Fibrinolytic
d. Contact group






3. Factor X can be activated by:
a. Factor XIa
b. Factor IXa, VIIIa, PF3, Ca++
c. Factor XIIa
d. Factor Va and VIIa
4. Which of the following cleaves pro-thrombin to thrombin?
a. Xa, Va, PF3, Ca++
b. IXa, VIIa, PF3, Ca++
c. VIIa / TF
d. XIa
5. Activated protein C together with its cofactor, protein S is an inhibitor of:
a. Factors VIIIa and Va
b. Plasmin
c. Thrombin
d. Plasminogen activators
6. The most concentrated coagulation factor in the blood is:
a. XII
b. IX
c. X
d. Fibrinogen
7. Which of the following is requires in adequate amounts for stabilization of the fibrin clot?
a. Factor I
b. Factor X
c. Factor XI
d. Factor XIII
8. Hemophilia B is a deficiency of:
a. Factor XI
b. Factor VIII
c. Factor IX
d. Fibrinogen
9. In which of the following disease would you most likely find an abnormal pro-thrombin time:
a. Hemophilia A
b. Hemophilia B
c. DIC
d. Prekallikrein deficiency
10.  Heparin inhibits the clotting of blood by neutralizing the effects of:
a. Calcium
b. Thrombin
c. Platelets
d. Factor XIII
11.  High molecular weight kinninogen (HMWK) and kallikrein are coagulation factors involved in:
a. Synergistic action with factor III
b. Activation of intrinsic coagulation
c. Induction of viscous metamorphosis
d. Formation of covalent bonds between fibrin monomers
12.  Prekallikrein is also known as:
a. Fletcher factor
b. Fitzgerald factor
c. Williams factor
d. Flaujeac factor
13.  High molecular weight kinninogen is also known as:
a. Extrinsic factor
b. Passavoy factor
c. Fletcher factor
d. Fitzgerald factor
14.  In the APTT procedure the time is taken for clot formation is measured after the addition of:
a. Tissue thromboplastin
b. Calcium chloride
c. Phospholipid
d. Activator
15.  Which of the following factors is not present in BaSO4 adsorbed plasma?
a. VIII
b. II
c. XII
d. V
16.  The integrity of the intrinsic coagulation system is evaluated by the:
a. Thrombin time test
b. PT
c. APTT
d. Bleeding time
17.  The activated partial thromboplastin time (APTT) is used as a screen for the laboratory evaluation of inherited or acquired deficiencies in the:
a. Extrinsic pathway of the coagulation cascade
b. Intrinsic pathway of the coagulation cascade
c. Platelets
d. Vascular system
18.  A deficiency in Factor X would affect:
a. Pro-thrombin time and activated partial thromboplastin  time
b. Activated partial thromboplastin time and template bleeding time
c. Activated partial thromboplastin time and thrombin time
d. Thrombin time and template bleeding time
19.  A prolonged Stypven (Russell viper venom) time is associated with deficiency of the following factors EXCEPT:
a. Factor I
b. Factor II
c. Factor X
d. Factor VII
20.  If a patient has a prolonged PT and prolonged APTT but both are corrected by aged plasma and serum but not corrected with adsorbed plasma, the most likely deficiency is factor:
a. X
b. V
c. II
d. I
21.  The urea solubility test is specific for detecting deficiencies of factor:
a. X
b. XII
c. XIII
d. IX
22.  A patient has a prolonged PT but a normal APTT. What is the most likely deficiency?
a. Factor VII
b. Factor X
c. Factor IX
d. Factor V
23.  The D-dimer test is a specific test for:
a. Plasminogen activation
b. Plasmin degradation of fibrinogen
c. Plasmin degragation of fibrin
d. Factor XIII
24.  Based on the following data, what is the most likely factor deficiency?
     PT                      normal
     APTT                    prolonged
     APTT + normal plasma    correction
     APTT + adsorbed plasma  no correction
     APTT + aged serum       correction
a. Factor V
b. Factor VIII
c. Factor IX
d. Factor XI
25.  The combination of prolonged APTT and a prolonged test with the mixing study procedures indicates the presence of:
a. Circulating inhibitor
b. Factor VIII deficiency
c. Anti-platelet antibodies
d. Excessive vitamin K
26.  Which laboratory test is specific for fibrinolysis?
a. D-dimer test
b. Fibrinogen defeciency
c. Euglobulin clot lysis
d. Antithrombin III
27.  An abnormal thrombin time is associated with:
a. Factor X deficiency
b. Fibrinogen deficiency
c. Excess plasminogen
d. Protein C deficiency
28.  The observation of a normal reptilase time and a prolonged thrombin time is indicative of:
a. Presence of fibrin degradation products
b. Dysfibrinogenemia
c. Hypoplasminogenemia
d. Presence of heparin
29.  These cells are important in the transport of oxygen and carbon dioxide between the lungs and body tissues:
a. Platelets
b. Leukocytes
c. Thrombocytes
d. Erythrocytes
30.  Leukocytes are necessary for:
a. Defense against foreign antigens
b. Hemostasis
c. Oxygen transport
d. Excretion of cellular metabolism
31.  This organ is important in maturation of T-lymphocytes:
a. Lymph nodes
b. Liver
c. Spleen
d. Thymus
32.  Nucleoli of cells contain predominantly which of the following:
a. DNA
b. RNA
c. ALP
d. Peroxidase
33.  The major erythrocyte production site is the:
a. Bone marrow
b. Kidney
c. Liver
d. Spleen
34.  The correct maturation order of erythrocyte morphologic stages is:
a. Prorubricyte, rubricyte, rubriblast, metarubricyte
b. Rubriblast, prorubricyte, rubricyte, metarubricyte
c. Rubriblast, metarubricyte, rubricyte, prorubricyte
d. Rubriblast, rubricyte, prorubricyte, metarubricyte 
35.  The earliest recognizable erythroid precursor on a Wright-stained smear of the bone marrow is:
a. Pronormoblast
b. Basophilic mormoblast
c. CFU-E
d. BFU-E
36.  A normal erythrocyte has a lifespan of:
a. 8.2 hours
b. 5 days
c. 28 days
d. 120 days
37.  Erythrocytes that contain a marked decrease in spectrin would most likely cause:
a. An increase in membrane permeability
b. Methemoglobinemia
c. An absence of MN antigens
d. Decreased erythrocyte membrane permeability
38.  Most of the erythrocyte’s energy comes from the:
a. Embden-Meyerhoff pathway
b. Hexose-monophosphate shunt
c. Rapoport-Luebering
d. Metheglobulin reduction pathway
39.  This metabolic pathway facilities oxygen release from hemoglobin to tissues:
a. Embden-Meyerhoff
b. Hexose-monophosphate shunt
c. Rapoport-Luebering
d. Metheglobulin reductase
40.  In the red blood cell, the hexose monophosphate shunt:
a. Produces adenosine triphosphate (ATP)
b. Produces 2,3-diphosphoglycerate (2,3-DPG)
c. Helps prevent oxidation of hemoglobin
d. Maintains membrane integrity
41.  The major site for removal of normal aged erythrocytes is:
a. Bone marrow
b. Kidney
c. Liver
d. Spleen
42.  Relative erythrocytosis may be found:
a. In pulmonary disorders
b. At high altitudes
c. With high oxygen affinity hemoglobin
d. In dehydration
43.  This renal hormone stimulates erythropoiesis in the bone marrow:
a. IL-1
b. Erythropoietin
c. Granulopoietin
d. Thrombopoietin
44.  These pairs of chains make up the majority of hemoglobin in normal adults:
a. α2β2
b. α2g2
c. α2δ2
d. z2l2
45.  A shift to the right in the ODC (oxygen dissociation curve) occurs when there is a/an:
a. Increase in O2
b. Increase in CO2
c. Increase in pH
d. Decrease in CO2
46.  The sigmoid shape of the ODC is due to:
a. The cooperative binding of O2 by hemoglobin
b. The Bohr effect
c. The presence of glycosylated hemoglobin
d. Erythropoietin
47.  Which of the following is unable to bind oxygen?
a. Carboxyhemoglobin
b. Sulfhemoglobin
c. Methemoglobin
d. All of the above
48.  Bite cells are associated with:
a. Pyruvate kinase deficiency
b. PNH
c. G6PD deficiency
d. Heredity pyropoikilocytosis
49.  Patients with beta thalassemia major may show increased amounts of:
a. Hemoglobin F
b. Hemoglobin C
c. Hemoglobin H
d. Hemoglobin A
50.  Which of the following is a pure red cell aplasia?
a. Bernard-Soulier syndrome
b. DiGuglielmo’s disease
c. Diamond-Blackfan anemia
d. Fanconi’s anemia
51.  Haptoglobin may become depleted in:
a. Inflammatory conditions
b. Acute hemolytic anemia
c. Infectious diseases
d. Kidney disease
52.  This form of hemoglobin has iron in the ferric state:
a. Sulhemoglubin
b. Methemoglobin
c. Carboxyhemoglobin
d. Deoxyhemoglobin
53.  Which of the following is a cause of neutrophilia:
a. Viral infection
b. Acute bacterial infection
c. Allergic reaction
d. Myeloperoxidase deficiency
54.  Which of the following findings would be most typical of severe septicemia?
a. Toxic granulation
b. Auer rods
c. Hypersegmentation
d. Alder-Reilly anomaly
55.  The plasma cell develops from the:
a. Basophil
b. T lymphocyte
c. B lymphocyte
d. Monocyte
56.  In the neutrophil series of leukocyte development, the earliest stage to normally appear in the peripheral blood is the:
a. Myeloblast
b. Promyelocyte
c. Myelocyte
d. Band
57.  The primary function of neutrophils is:
a. A mediator of hypersensitivity
b. Control of parasitic infections
c. Initiation of the immune response
d. Phagocytic defense against microorganism
58.  Sézary cells are:
a. Lipid-filled histiocytes
b. Abnormal plasma cells
c. Abnormal cells in Hodgkin’s disease
d. Abnormal T lymphocytes
59.  This is the first heavy immunoglobulin chain produced in the maturing B-lymphocyte:
a. α
b. β
c. g
d. µ
60.  A peripheral blood smear that has a mixture of macrocytes, microcytes and normal erythrocytes present can be best described by which term?
a. Polkilocytosis
b. Polychromatophilia
c. Megaloblastosis
d. Anisocytosis
61.  What is the iron transport protein?
a. Ferritin
b. Transferrin
c. Hemosiderin
d. Albumin
62.  What are DÖhle bodies?
a. Aggregates of rough endoplasmic reticulum
b. Primary granules
c. Fat globules
d. Liposomes containing partially degraded mucopolysaccharides
63.  Multiple myeloma is a disorder of:
a. T lymphocytes
b. Plasma cells
c. Megakaryocytes
d. Erythrocytes
64.  The cells considered to be distinctive of Hodgkin’s disease is:
a. Turk’s cells
b. Ferrata cells
c. Reed-Sternberg cells
d. Flame cells
65.  Alder-Reilly anomaly has effect on leukocytes that closely resembles:
a. Toxic granulation
b. Hyposegmention
c. Dohle-like inclusion bodies
d. Hypersegmentation
66.  Aleukoerythrobalstic reaction is characterized by the presence of ___ in the peripheral blood:
a. Immature leukocytes and nucleated erythrocytes
b. Lymphocytosis and neutropenia
c. Leukocytosis and erythrocytosis
d. Pseudo-Pelger Huet cells
67.  An increased in basophils is associated with:
a. Chronic myeloproliferative diseases
b. Parasitic infection
c. Chronic infection
d. Administration of glucocorticoids
68.  HIV (Human immunodeficiency virus) infects:
a. B lymphocytes
b. Suppressor T lymphocytes
c. Helper T lymphocytes
d. Cytotoxic T lymphocytes
69.  A 2-year old child has a total leukocyte count of 10 x 109/L and 60% lymphocytes. The following best describes this blood picture:
a. Absolutely lymphocytosis
b. Relative lymphocytosis
c. Normal lymphocyte count for a given age
d. Absolute lymphocytopenia
70.  Auer rods are inclusions found in:
a. Myeloblasts
b. Lymphoblasts
c. Erythrocytes
d. Prolymphocytes
71.  Extensive bone marrow fibrosis, leukoerythroblastic peripheral blood and the presence of anisocytosis with dacyocytes are most characteristic of:
a. CML
b. PV
c. ET
d. MMM
72.  What is the minimum number of bone marrow blasts needed for the diagnosis of acute leukemia?
a. 29%
b. 50%
c. 5%
d. 30%
73.  In addition to the number of blasts, what other criterion is essential for the diagnosis of RARS?
a. More than 15% ringed sideroblasts
b. More than 30% ringed sideroblasts
c. Dyshematopoiesis in all three cell lineages
d. Pancytopenia
74.  The FAB classification of a leukemia with large blasts that are myeloperoxidase and specific esterase negative but have strong Positivity for nonspecific esterase inhibited by sodium fluoride is:
a. M1
b. M4
c. M5
d. M7
75.  The highest levels of serum and urine muramidase are found in this leukemia:
a. M0 AML
b. M2 AML
c. CML
d. M5 AML
76.  When Auer rods (bodies) are found in blasts of a case of acute leukemia, the leukemia is most probably:
a. Undifferentiated leukemia
b. B lymphocytic leukemia
c. T lymphocytic leukemia
d. Myelocytic leukemia
77.  The normal lifespan of the platelets in the peripheral blood is:
a. 8 hours
b. 1 day
c. 10 days
d. 100 days
78.  Platelet dense granules are storage organelles for ___, which are released after activation.
a. Calcium, ADP and serotonin
b. Fibrinogen, glycoprotein Ib, and von Willebrand factor
c. ADP, thromboxane A2, and fibrinogen
d. Lysosomal granules, ATP, and factor V
79.  Which of the following is needed for platelets to aggregate?
a. Thrombin
b. Actin
c. von Willebrand factor
d. Fibrinogen
80.  Platelet glycoprotein IIb/IIIa complex is:
a. Membrane receptor for fibrinogen
b. Secreted from the dense bodies
c. Secreted by endothelial cells
d. Also called actin
81.  The formation of thromboxane A2 in the activated platelet:
a. Is needed for platelets to adhere to collagen
b. Is caused by the alpha granule proteins
c. Requires the enzyme cyclooxygenase
d. Occurs via a pathway involving von Willebrand factor
82.  A humoral factor which regulates platelet production by speeding up the maturation time of megakaryocyte is called;
a. Thrombocyte
b. Thrombopoeitin
c. Interleukin 3
d. prostaglandin
83.  which of the following is true about relationship between ADP and platelets?
a. ADP is necessary for platelet adhesion
b. ADP released from the granules is required for platelet aggregation
c. ADP is synthesized in the platelet from arachidonic acid
d. ADP is released from the alpha granule of the platelet
84.  Thrombocytopenia may be associated with all of the following, EXCEPT:
a. Prolonged bleeding time
b. Prolonged clotting time
c. Poor clot retraction
d. Positive tourniquet test
85.  Approximately ___ of the total number of platelets circulate in the systemic circulation?
a. One-fourth
b. One-third
c. One-half
d. Two-thirds
86.  Clot retraction is a function of:
a. Thromboxane A2
b. Factor XIII
c. Thrombosthenin
d. Thromboplastin
87.  A patient with Bernard Soulier disease will probably have:
a. Increased bleeding time
b. Increased prothrombin time
c. Increased platelet count
d. Abnormal aggregation with ADP and collagen
88.  A patient with Glanzmann thrombasthenia has:
a. A mutation in the gene for fibrinogen
b. An acquired abnormality of von Willebrand factor
c. A genetic abnormality of glycoprotein IIb or IIIa
d. An acquired vascular disorder
89.  A patient with hereditary telangiectasia has:
a. Abnormal platelet adhesion t collagen
b. Thrombocytosis
c. A deficiency of platelet dense bodies
d. Dilated capillaries on mucous membranes that are likely to cause bleeding
90.  The bleeding time is expected to be normal in:
a. Hemophilia
b. Drug-induced thrombocytopenia
c. Uremia
d. Bernard-Soulier disease
91.  Platelet adhesion is abnormal in Bernard-Soulier disease because:
a. Glycoprotein Ib of the platelet membrane is defective
b. A plasma factor needed for platelet adhesion is absent
c. Antibodies to phospholipid are present
d. Abnormal proteins in the plasma coat the platelet membrane
92.  An elevated platelet count is associated with:
a. Hemorrhage
b. Megaloblastic anemia
c. Myelodysplastic syndromes
d. Immune thrombocytopenic purpura
93.  Platelet aggregation studies revealed normal aggregation curves with collagen, epinephrine, and ADP, but an abnormal aggregation curve with ristocetin. Based on these findings, what is the differential diagnosis?
a. Von Willebrand disease and Bernard-Soulier syndrome
b. Glanzmann’s thrombasthenia and von disease
c. Storage pool disease and Glanzmann’s thrombasthenia
d. Bernard-Soulier syndrome and storage pool disease
94.  Bleeding disorder/s in which platelets fail to aggregate with ristocetin:
1. von Willebrand’s disease
2. Glanzmann’s disease
3. Bernard-Soulier syndrome
4. Storage pool disease
a. 1 and 3
b. 2 and 4
c. 1, 2 and 3
d. 1, 2, 3 and 4
95.  Which of the following platelet responses is most likely associated with Glanzmann’s thrombasthenia?
a. Decreased platelet aggregation to ristocetin
b. Defective ADP release; normal response to ADP
c. Decreased amount of ADP in platelets
d. Markedly decreased aggregation to epinephrine, ADP and collagen
96.  Platelet function is impaired after ingesting aspirin because:
a. Aspirin blocks certain glycoprotein receptors on the surface of the platelet
b. Aspirin interferes with liver synthesis of a number of coagulation factors
c. Aspirin alters the structure of the glycocalyx
d. Aspirin decreases thromboxane A2 formation by inhibiting cyclooxygenase
97.  Aspirin ingestion has the following hemostatic effect in a normal person:
a. Prolonged prothrombin time
b. Prolonged bleeding time
c. Prolonged APTT
d. All of the above
98.  Using manual techniques, the most reproducible test of the following is:
a. Leukocyte count
b. Erythrocyte count
c. Hemoglobin determination
d. Hematocrit determination
99.  Hemoglobin is measured spectrophotometrically at which of the following wavelength:
a. 340 nm
b. 440 nm
c. 450 nm
d. 540 nm
100. Which of the following may be confused with reticulocytes in a brilliant cresyl blue stained smear:
a. Hemoglobin C crystal
b. Basophilic stipplings
c. Hemoglobin H bodies
d. Cabot rings
101. The degree of effective erythropoiesis is best assessed by:
a. Serum iron labels
b. Hemoglobin determinations
c. Ferrokinetic studies with Fe59
d. Reticulocyte counts
102. Any turbidity in a peripheral blood specimen will result in a falsely elevated hemoglobin determination. Which of the following is NOT a potential source of turbidity?
a. Lipemia
b. Increased leukocyte counts
c. Increased level of carboxyhemoglobin
d. Presence of hemoglobin S
103. The following erythrocyte data were obtained from an EDTA-anticoagulated specimen: erythrocyte count = 2.84 x 1012/L, hemoglobin = 7.2 g/dL, hematocrit = 26% (0.26 L/L), calculate the MCV.
a. 25.3 fL
b. 27.7 fL
c. 65.9 fL
d. 91.5 fL
104. Which of the following is NOT a condition associated with an elevated ESR?
a. Rheumatoid arthritis
b. Polycythemia vera
c. Multiple myeloma
d. Chronic infection
105. Which stain is commonly used to perform a reticulocyte count?
a. Wright stain
b. Crystal violet
c. New methylene blue
d. Natural red
106. Which of the following is an appropriate screening test for the presence of hemoglobin S?
a. Dithionate solubility test
b. Hemoglobin electrophoresis
c. Heat instability test
d. Acid elution test
107. Which of the following does NOT increase the sedimentation of red cells?
a. Rouleaux
b. Poikilocytosis
c. Increased globulins
d. Low erythrocyte count
108. Which of the following is not detected by the DAT with polyspecific AHG?
a. Erythrocyte sensitization with antibodies “in vivo”
b. Erythrocyte sensitization with incomplete antibodies “in vivo”
c. Erythrocyte sensitization with complement “in vivo”
d. Erythrocyte sensitization with antibodies “in vitro”
109. The Donath-Landsteiner test is positive in:
a. PNH
b. CHD
c. PCH
d. Warm AIHA
110. A positive sucrose hemolysis test was followed by a Ham test. There was hemolysis of the patient’s cells in acidified serum. These results are indicative of:
a. G6PD deficiency
b. Hereditary spherocytosis
c. Pyruvate kinase deficiency
d. PNH
111. The principal test in the diagnosis of heredity spherocytosis is:
a. Autohemolysis test
b. Ham test
c. Osmotic fragility test
d. Thermal stability test
112. Which laboratory test is more appropriate screen for unstable hemoglobulin disorders?
a. Heat instability test
b. Hemoglobin electrophoresis
c. Osmotic fragility
d. Serum bilirubin
113. The slowest moving hemoglobin on electrophoresis at pH 8.4 is:
a. Hemoglobin A
b. Hemoglobin F
c. Hemoglobin C
d. Hemoglobin G
114. In cellulose acetate electrophoresis, hemoglobin S has the same mobility as:
a. Hemoglobin E
b. Hemoglobin F
c. Hemoglobin D
d. Hemoglobin C
115. Which of the following hemoglobin electrophoresis results is most typical of sickle cell trait?
a. 85% Hb S and 15% Hb A
b. 85% Hb F and 15% Hb S
c. 45% Hb S and 55% Hb A
d. 55% Hb F and 455 Hb S
116. The substance that will hasten the sickling of erythrocyte is:
a. Sodium oxalate
b. Sodium metabisulfite
c. Sodium citrate
d. Sodium phosphate
117. Hemoglobin S and D can be differentiated by which test?
a. Autohemolysis test
b. Acid serum test
c. Hemoglobin electrophoresis at pH 8.6
d. Solubility test
118. Increased osmotic fragility could be expected in which of the following disorders?
a. Iron deficiency anemia
b. Thalassemia
c. Sickle cell anemia
d. Hereditary spherocytosis
119. Which of the following erythrocyte inclusions cannot be stained and visualized with Romanowsky stain?
a. Pappenheimer bodies
b. Howell-Jolly bodies
c. Heinz bodies
d. Basophilic stippling
120. Which of the following laboratory tests is most specific for vitamins B12 or folic acid deficiency?
a. Low ferriti
b. High RDW
c. Coomb’s test
d. MCV > 105
121. Which laboratory result is most useful in distinguishing iron deficiency anemia from anemia of chronic disease?
a. Serum iron
b. MCV
c. Hemoglobin
d. Transferrin receptor
122. If a serum transferring receptor assay were performed on an iron deficient individual, what would you expect the result to be:
a. Increased
b. Decreased
c. Normal
d. AOTA
123. The electrical impedance principle is based on the fact that:
a. Blood cells are good conductors of electricity
b. Blood cells are poor conductors of electricity
c. Resistance of the electrical path is decreased as the individual cells passes through the aperture
d. Blood cells have a relative density greater than that of saline
124. B-lymphocytes can be distinguished from T-lymphocytes by:
a. Morphology on Romanowsky-stained smear
b. Size of the cell
c. Monoclonal antibodies to surface antigens
d. Presence of granules
125. A manual leukocyte count was performed on an EDTA-anticoagualated specimen. The specimen was diluted 1:20 and a total of 165 leukocytes were counted in the four corner squares of the hemacytometer. What is the leukocyte count?
a. 1.3 x 109/L
b. 3.3 x 109/L
c. 4.1 x 109/L
d. 8.3 x 109/L
126. Chromosome analysis revealed the presence of the Philadelphia chromosome. What myeloproliferative disorder is present?
a. CML
b. PV
c. ET
d. MMM
127. What cytochemical stain is used to help differentiate a leukomoid reaction from CML?
a. Peroxidase
b. New methylene blue
c. Leukocyte alkaline phosphatase
d. Perl’s Prussian blue
128. What cytochemical stain is most useful in the differentiation of a myeloblast from a lymphoblast?
a. Periodic acid-Schiff reaction
b. Acid phosphatase
c. Myeloperoxidase
d. α-naphthyl acetate esterase
129. The esterase cytochemical stains are useful to differentiate:
a. Granulocytic from monocytic leukemias
b. Lymphocytic leukemias from myelocytoc leukemias
c. Monocytic leukemias from megakaryocytic leukemias
d. Lymphocytic leukemias from monocytic leukemias
130. A leukomoid reaction may be distinguished from chronic myelocytic leukemia by:
a. The total leukocyte count
b. The presence or absence of immature neutrophils
c. Chromosome studies
d. The presence or absence of anemia
131. Which of the following stains is not useful in the differentiation of acute myelogenous leukemia from acute lymphocytic leukemia?
a. Chloracetate esterase stain
b. Sudan black B stain
c. Myeloperoxidase stain
d. Periodic acid-Schiff stain
132. Based on the results obtained from the evaluation of a leukocyte alkaline phosphatas (LAP) stain, what is the total LAP score?
Cell Rating
Number of Cells Counted
0
35
1+
40
2+
20
3+
5
4+
0
a. 65
b. 75
c. 95
d. 130
133. The niroblue tetrazolium test would be most useful in detecting:
a. Chediak-Higashi syndrome
b. Infectious mononucleosis
c. Chronic granulomatous disease
d. Niemann-Pick disease
134. Heterophil antibodies found in infectious mononucleosis are absorbed by:
a. Beef erythrocytes but not guinea pig kidney cells
b. Both beef erythrocytes and guinea pig kidney cells
c. Neither beef erythrocytes and guinea pig kidney cells
d. Guinea pig kidney cells but not beef erythrocytes