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MCQ’s Chapter 13 (Lab)

Some of Common Questions and Answers for Laboratory Technicians and Technologists.

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Questions 601 to 650

  1. A multilineage cytokine among the ILs is:
    • IL-1
    • IL-2
    • IL-3
    • IL-4
  2. Which of the following cells may develop in sites other than the bone marrow?
    • Monocyte
    • Lymphocyte
    • Megakaryocyte
    • Neutrophil
  3. 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:
    1. Precise, but not accurate
    2. Both accurate and precise
    3. Accurate, but not precise
    4. Neither accurate nor precise
  4. The layer of the erythrocyte membrane that is largely responsible for the shape, structure, and deformability of the cell is the:
    • Integral protein
    • Exterior lipid
    • Peripheral protein
    • Interior lipid
  5. During midfetal life, the primary source of blood cells is the:
    • Bone marrow
    • Spleen
    • Lymph Nodes
    • Liver
  6. In the bone marrow, RBC precursors are located:
    • In the center of the hematopoietic cords
    • Adjacent to megakaryocytes along the adventitial cell lining
    • Surrounding fat cells in apoptotic islands
    • Surrounding macrophages near the sinus membrane
  7. Which of the following gathers, organizes, and directs light through the specimen ?
    • Ocular
    • Objective lens
    • Condenser
    • Optical Tube
  8. How are the globin chains genes arranged? Note: a means alpha, B means beta
    • With a genes and B genes on the same chromosome including two a genes and two B genes
    • With a genes and B genes on seperate chromosomes, two a genes on one chromosome and one B gene on a different chromosome
    • With a genes and B genes on the same chromosome – including four a genes and four B genes
    • With a genes and B genes on separate chromosomes – four a genes on one chromosome and two B genes on a different chromosome
  9. The maximum number of erythrocytes generated by one Multipotential Stem Cell is:
    • 8
    • 1
    • 12
    • 16
  10. What is the distribution of normal Hb in adults ?
    • 80-90% Hb A, 5-10% Hb A2, 1-5% Hb
    • 95% Hb A, <3.5 % Hb A2, <1-2% Hb F
  1. The most frequent cause of needle punctures is:
    • Patient movement during venipuncture
    • Improper disposal of phlebotomy equipment
    • Inattention during removal of needle after venipuncture
    • Failure to attach needle firmly to tube holder
  2. Iron is incorporated into the heme molecule in which of the following forms:
    • Ferro
    • Ferrous
    • Ferric
    • Apoferritin
  3. The most important practice in preventing the spread of disease is:
    • Wearing masks during patient contact
    • Proper handwashing
    • Wearing disposable lab coats
    • Identifying specimens from known or suspected HIV and HBV patients with a red label
  4. Which of the following would correlate with an elevated ESR value ?
    • Osteoarthritis
    • Polycythemia
    • Decreased globulins
    • Inflammation
  5. The enzyme deficiency in the Embden-Meyerhof pathway that is responsible for most cases of nonspherocytic hemolytic anemia is:
    • Hexokinase
    • Phosphotriptokinase
    • Pyruvate Kinase
    • Glyceraldehyde 3-Phosphate
  6. The most common type of protein found in the cell membrane is:
    • Lipoprotein
    • Mucoprotein
    • Glycoprotein
    • Nucleoprotein
  7. Neutrophil Count is high in
    • Acute bacterial Infaction
    • Iron Deficiency Anemi
    • Megaloblastic Anemia
  8. HbA2 is consisting of
    • 3 α chains and 2 γ chains
    • 2 α and 2 β chains
    • 2 α and 2 δ chains
    • 3 α and 2 δ chains
  9. The Main (most) Hb found in Adult is
    • Hb A
    • Hb A2
    • Hb F
  10. Detection of Malarial parasite is by :
    • Thick Blood Film
    • Thin Blood Film
  11. Leukocyte that involve in adaptive and chest pain
    • Lymphocyte
    • Monocyte
    • Neutrophil
    • Basophil
  12. Retuclocyte is immature
    • RBC
    • WBC
    • Platelet Count
  13. Leukocyte responsible for cellular immunity
    • B-Lymphocyte
    • Basophil
    • Monocyte
    • T-Lymphocyte
  14. malarial Infection transmitted by
    • Male anopheles mosquito
    • Female anopheles mosquito
  15. One stage prothrombin time is used to detect disorders in
    • Extrinsic coagulation pathway (Factors)
    • Intrinsic coagulation pathway (Factors)
  16. Thrombin time is
    • Extrinsic coagulation pathway (Factors)
    • Intrinsic coagulation pathway (Factors)
    • The conversion of protrombin to fibronigen in addition of thrombin
  17. The sever malarial infection caused by
    • Plasmodium Falciparum
    • Plasmodium Malaria
    • Plasmodium Oval
    • Plasmodium Vivax
  18. Leukocyte responsible for responce to parasitic and all allergic infections
    • Neutrophils
    • Lymphocytes
    • Monocytes
    • Eosinophils
    • Basophils
  19. With romanowsky stain, 2-3 lobs and violet or pinkish granules
    • Neutrophils
    • Eosinophils
    • Basophils
  20. Lymphocytes is elevated in
    • Acute bacterial Infaction
    • Iron Deficiency Anemi
    • Megaloblastic Anemia
    • None of above
  1. Thrombin Time Measure
    • Convert fibrinogen to fibrin with activate of thrombin
    • Prothrombin Time
    • FDP’s Level
  2. In Presence of clotting defect on of this not measure
    • Leukocyte
    • Monocyte
    • Basophils
    • Target Cells
  3. Which of the White blood cell give immunoglobulin:
    • Neutrophils
    • Lymphocytes
    • Monocytes
    • Eosinophils
    • Basophils
  4. Which of the following is a natural anticoagulant
    • EDTA
    • Double Oxalate
    • ACD
    • Heparin
  5. Ideal time of collecting blood sample for detection of filarial worm
    • 2 pm – 4 pm
    • 10 pm – 2 am
    • 6 am – 8 am
    • 10 am to 2 pm
  6. What is ‘Sex Ratio’ ?
    • Number of females per thousand males
    • Number of females per hundred males
    • Difference between birth rate and death rate
    • Study of population growth
  7. Aorta arises from
    • Right atrium
    • Left atrium
    • Right ventricle
    • Left ventricle
  8. The protein portion of the enzyme is
    • Apoenzyme
    • Prosthetic group
    • Co-factor
    • Coenzyme
  9. Which of the following cells is not a WBC ?
    • Neutrophil
    • Basophil
    • Manocyte
    • Thrombocyte
  10. The colouring agent used in antisera AB is
    • Methelene blue
    • Acriflavin
    • Eosin
    • Safranin
  11. Name the anticoagulant present in purple coloured vacutainer tube
    • Heparin
    • EDTA
    • Sodium citrate
    • None of these
  12. Blood collected in CPD-A can be stored in blood bank refrigerator for ____ days.
    • 35
    • 28
    • 21
    • 25
  13. HDN due to Rh incompatibility can be prevented by giving anti-D antibody to Rh negative mother within ___ hours of delivery of Rh positive infant.
    • 48 hrs
    • 72 hrs
    • 24 hrs
    • 36 hrs
  14. Which of the following is not an RBC diluting fluid ?
    • Normal saline
    • Dacies fluid
    • Turkes fluid
    • Toissons fluid
  15. During donor screening persons having history of malaria should be avoided for a period of ___ years.
    • 1 week
    • 2 years
    • 1 year
    • 3 years
  16. Depth of improved neubauer counting chamber is
    • 0.1 mm
    • 0.01 mm
    • 0.001 mm
    • 1 mm
  17. Name the enzyme estimation done in semen sample to analyse the secretory function of prostate
    • Alanine transaminase
    • asparte transaminase
    • acid phosphatase
    • alkaline phasphatase
  18. The only cell in normal CSF is
    • Neutrophil
    • Lymphocyte
    • Manocyte
    • None of these
  19. Name the tests used to detect bile salt in urine.
    • Benzidine test
    • Fouchet’s test
    • Ehrlich’s test
    • Hays test
  20. Ketone bodies in urine are
    • acetone
    • ‘beta’ hydroxy butyric acid
    • Both 1 and 2
    • None of these

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