Quiz Answers
- After the microscope has been adjusted for Kohler illumination, light intensity should never be regulated by using the…
- a. Rheostat
- b. Neutral density filter
- c. Kohler magnifier
- d. Condenser ✅
- Which of the following types of microscopy is valuable in the identification of crystals that are able to rotate light?
- a. Compound brightfield
- b. Darkfield
- c. Polarizing ✅
- d. Phase-contrast
- During the Medullary Phase of hematopoietic development, which bone is the first to show hematopoietic activity?
- a. Femur
- b. Iliac Crest
- c. Skull
- d. Clavicle ✅
- Given the following values, calculate the RPI Observed reticulocyte count – 6% Hct- 30%
- a. 2 ✅
- b. 3
- c. 4
- d. 5
- 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 ✅
- 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
- 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 ✅
- 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 ✅
- A multilineage cytokine among the ILs is:
- a. IL-1 ✅
- b. IL-2
- c. IL-3
- d. IL-4
- Which of the following cells may develop in sites other than the bone marrow?
- a. Monocyte
- b. Lymphocyte ✅
- c. Megakaryocyte
- d. Neutrophil
- 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
- 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
- During midfetal life, the primary source of blood cells is the:
- a. Bone marrow
- b. Spleen
- c. Lymph Nodes
- d. Liver ✅
- 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 ✅
- Which of the following gathers, organizes, and directs light through the specimen?
- a. Ocular
- b. Objective lens
- c. Condenser ✅
- d. Optical Tube
- 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 separate 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
- The maximum number of erythrocytes generated by one Multipotential Stem Cell is:
- a. 8
- b. 1
- c. 12
- d. 16 ✅
- What is the distribution of normal Hb in adults?
- a. 80-90% Hb A, 5-10% Hb A2, 1-5% Hb
- b. 95% Hb A, <3.5 % Hb A2, <1-2% Hb F ✅
- 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
- Iron is incorporated into the heme molecule in which of the following forms:
- a. Ferro
- b. Ferrous ✅
- c. Ferric
- d. Apoferritin
- 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
- Which of the following would correlate with an elevated ESR value?
- a. Osteoarthritis
- b. Polycythemia
- c. Decreased globulins
- d. Inflammation ✅
- 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
- The most common type of protein found in the cell membrane is:
- a. Lipoprotein
- b. Mucoprotein
- c. Glycoprotein ✅
- d. Nucleoprotein
- Neutrophil Count is high in
- a. Acute bacterial Infaction ✅
- b. Iron Deficiency Anemi
- c. Megaloblastic Anemia
- HbA2 is consisting of
- a. 3 α chains and 2 γ chains
- b. 2 α and 2 β chains
- c. 2 α and 2 δ chains ✅
- d. 3 α and 2 δ chains
- The Main (most) Hb found in Adult is
- a. Hb A ✅
- b. Hb A2
- c. Hb F
- Detection of Malarial parasite is by:
- a. Thick Blood Film ✅
- b. Thin Blood Film
- Leukocyte that involve in adaptive and chest pain
- a. Lymphocyte ✅
- b. Monocyte
- c. Neutrophil
- d. Basophil
- Reticulocyte is immature
- a. RBC ✅
- b. WBC
- c. Platelet Count
- Leukocyte responsible for cellular immunity
- a. B-Lymphocyte
- b. Basophil
- c. Monocyte
- d. T-Lymphocyte ✅
- Malarial Infection transmitted by
- a. Male anopheles mosquito
- b. Female anopheles mosquito ✅
- One stage prothrombin time is used to detect disorders in
- a. Extrinsic coagulation pathway (Factors) ✅
- b. Intrinsic coagulation pathway (Factors)
- Thrombin time is
- a. Extrinsic coagulation pathway (Factors)
- b. Intrinsic coagulation pathway (Factors)
- c. The conversion of protrombin to fibronigen in addition of thrombin ✅
- The severe malarial infection caused by
- a. Plasmodium Falciparum ✅
- b. Plasmodium Malaria
- c. Plasmodium Oval
- d. Plasmodium Vivax
- Leukocyte responsible for response to parasitic and all allergic infections
- a. Neutrophils
- b. Lymphocytes
- c. Monocytes
- d. Eosinophils ✅
- e. Basophils
- With Romanowsky stain, 2-3 lobes and violet or pinkish granules
- a. Neutrophils ✅
- b. Eosinophils
- c. Basophils
- Lymphocytes is elevated in
- a. Acute bacterial Infaction
- b. Iron Deficiency Anemi
- c. Megaloblastic Anemia
- d. None of above ✅
- Thrombin Time Measure
- a. Convert fibrinogen to fibrin with activate of thrombin ✅
- b. Prothrombin Time
- c. FDP’s Level
- In Presence of clotting defect one of this not measure
- a. Leukocyte ✅
- b. Monocyte
- c. Basophils
- d. Target Cells
- Which of the White blood cell give immunoglobulin:
- a. Neutrophils
- b. Lymphocytes ✅
- c. Monocytes
- d. Eosinophils
- e. Basophils
- Which of the following is a natural anticoagulant
- a. EDTA
- b. Double Oxalate
- c. ACD
- d. Heparin ✅
- Ideal time of collecting blood sample for detection of filarial worm
- a. 2 pm – 4 pm
- b. 10 pm – 2 am
- c. 6 am – 8 am
- d. 10 am to 2 pm ✅
- What is ‘Sex Ratio’?
- a. Number of females per thousand males ✅
- b. Number of females per hundred males
- c. Difference between birth rate and death rate
- d. Study of population growth
- Aorta arises from
- a. Right atrium
- b. Left atrium
- c. Right ventricle
- d. Left ventricle ✅
- The protein portion of the enzyme is
- a. Apoenzyme ✅
- b. Prosthetic group
- c. Co-factor
- d. Coenzyme
- Which of the following cells is not a WBC?
- a. Neutrophil
- b. Basophil
- c. Manocyte
- d. Thrombocyte ✅
- The coloring agent used in antisera AB is
- a. Methylene blue
- b. Acriflavin
- c. Eosin ✅
- d. Safranin
- Name the anticoagulant present in purple coloured vacutainer tube
- a. Heparin
- b. EDTA ✅
- c. Sodium citrate
- d. None of these
- Blood collected in CPD-A can be stored in blood bank refrigerator for ____ days.
- a. 35 ✅
- b. 28
- c. 21
- d. 25
