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Hematology Quiz | Hematology Objective Type Questions and Answers

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Questions
21 The most common type of protein found in the cell membrane is:
A Lipoprotein
B Mucoprotein
C Glycoprotein
D Nucleoprotein

Answer: Glycoprotein
22 The enzyme deficiency in the Embden-Meyerhof pathway that is responsible for most cases of nonspherocytic hemolytic anemia is:
A Hexokinase
B Phosphotriptokinase
C Pyruvate Kinase
D Glyceraldehyde 3-Phosphate

Answer: Pyruvate Kinase
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23 Which of the following would correlate with an elevated ESR value?
A Osteoarthritis
B Polycythemia
C Decreased globulins
D Inflammation

Answer: Inflammation
24 The most important practice in preventing the spread of disease is:
A Wearing masks during patient contact
B Proper handwashing
C Wearing disposable lab coats
D Identifying specimens from known or suspected HIV and HBV patients with a red label

Answer: Proper handwashing
25 Iron is incorporated into the heme molecule in which of the following forms:
A Ferro
B Ferrous
C Ferric
D Apoferritin

Answer: Ferrous
26 The most frequent cause of needle punctures is:
A Patient movement during venipuncture
B Improper disposal of phlebotomy equipment
C Inattention during removal of needle after venipuncture
D Failure to attach needle firmly to tube holder

Answer: Improper disposal of phlebotomy equipment
27 What is the distribution of normal Hb in adults?
A 80-90% Hb A, 5-10% Hb A2, 1-5% Hb F
B >95% Hb A, <3.5 % Hb A2, <1-2% Hb F
C All of these
D None of these

Answer: >95% Hb A, <3.5 % Hb A2, <1-2% Hb F
28 The maximum number of erythrocytes generated by one Multipotential Stem Cell is:
A 8
B 1
C 12
D 16

Answer: 16
29 How are the globin chains genes arranged? Note: a means alpha, B means beta
A With a genes and B genes on the same chromosome including two a genes and two B genes
B With a genes and B genes on seperate chromosomes, two a genes on one chromosome and one B gene on a different chromosome
C With a genes and B genes on the same chromosome - including four a genes and four B genes
D With a genes and B genes on separate chromosomes - four a genes on one chromosome and two B genes on a different chromosome

Answer: With a genes and B genes on seperate chromosomes, two a genes on one chromosome and one B gene on a different chromosome
30 Which of the following gathers, organizes, and directs light through the specimen?
A Ocular
B Objective lens
C Condenser
D Optical Tube

Answer: Condenser
31 In the bone marrow, RBC precursors are located:
A In the center of the hematopoietic cords
B Adjacent to megakaryocytes along the adventitial cell lining
C Surrounding fat cells in apoptotic islands
D Surrounding macrophages near the sinus membrane

Answer: Surrounding macrophages near the sinus membrane
32 During midfetal life, the primary source of blood cells is the:
A Bone marrow
B Spleen
C Lymph Nodes
D Liver

Answer: Liver
33 The layer of the erythrocyte membrane that is largely responsible for the shape, structure, and deformability of the cell is the:
A Integral protein
B Exterior lipid
C Peripheral protein
D Interior lipid

Answer: Peripheral protein
34 The acceptable range for hemoglobin values on a control sample is 13 + or - 0.4 g/dL. A hemoglobin determination is performed five times in succession on the same control sample. The results are (in g/dL. 12 12.3, 12, 12.2, and 12.1) These results are:
A Precise, but not accurate
B Both accurate and precise
C Accurate, but not precise
D Neither accurate nor precise

Answer: Precise, but not accurate
35 Which of the following cells may develop in sites other than the bone marrow?
A Monocyte
B Lymphocyte
C Megakaryocyte
D Neutrophil

Answer: Lymphocyte
36 A multilineage cytokine among the ILs is:
A IL-1
B IL-2
C IL-3
D IL-4

Answer: IL-1
37 In the Iron cycle, the transferrin receptor carries:
A Iron out of duodenal cells from the intestinal lumen
B Iron out of duodenal cells into the plasma
C transferrin-bound iron in the plasma
D transferrin-bound iron into erythrocytes

Answer: transferrin-bound iron into erythrocytes
38 Which single feature of normal RBC's is most responsible for limiting their life span?
A Loss of mitochondria
B Increased flexibility of the cell membrane
C Reduction of Hb iron
D Loss of nucleus

Answer: Loss of nucleus
39 The hexose monophosphate pathway activity increases the RBC source of
A Glucose and lactic acid
B 2,3-BPG and methemoglobin
C NADPH and reduced glutathione
D ATP and other purine metabolites

Answer: NADPH and reduced glutathione
40 The lipids of the RBC membrane are arranged:
A In chains beneath a protein exoskeleton
B So that the hydrophobic portions are facing the plasma
C In a hexagonal lattice
D In two layers that are not symmetric in composition

Answer: In two layers that are not symmetric in composition