Quiz on Hematology Anticoagulants and Blood Cell Identification
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Questions and Answers

Which coagulation factor is activated by COLD temperature?

  • Factor VIII
  • Factor IV
  • Factor VII
  • Factor XI (correct)

    • Which drug will NOT cause an INCREASE in ESR (Erythrocyte Sedimentation Rate)?

  • Cortisone
  • Theophylline
  • Penicillamine (correct)
  • Procainamide

    • What is the average LIFESPAN of platelets?

  • 10-14 days (correct)
  • 20-25 days
  • 5-7 days
  • 15-20 days

    • Which hemoglobin type is present in the MESOBLASTIC PHASE?

    <p>Hb F (A)</p> Signup and view all the answers

    What is used to reduce the RISK of capillary tube injuries according to the National Institute for Occupational Safety and Health?

    <p>Mylar-wrapped tubes (D)</p> Signup and view all the answers

    Which of the following describes REPRODUCIBILITY?

    <p>Precision (A)</p> Signup and view all the answers

    What guidelines must be followed in treating blood and considering all specimens infectious for bloodborne pathogens?

    <p>Standard precautions (A)</p> Signup and view all the answers

    In a normal functioning bone marrow, what is the RPI index?

    <p>3 (D)</p> Signup and view all the answers

    In cyanmethemoglobin measurement, which wavelength is directly proportional to hemoglobin concentration?

    <p>540 (B)</p> Signup and view all the answers

    What characterizes thrombosthemia?

    <p>Gp IIb-IIIa (C)</p> Signup and view all the answers

    What formula is used to calculate manual WBC count?

    <p>Average total leukocytes counted x dilution factor (B)</p> Signup and view all the answers

    Which of the following fragments is NOT produced by the digestion of either fibrin or fibrinogen by plasmin?

    <p>Fragment Y (D)</p> Signup and view all the answers

    Which of the following clotting factors is NOT exclusively synthesized in the liver?

    <p>Factor V (C)</p> Signup and view all the answers

    In cases of liver failure, which clotting factors would be most affected?

    <p>Factors II, VII, IX, and X (B)</p> Signup and view all the answers

    What is the process known as 'CULLING' in relation to RBCs?

    <p>Removal of surface membrane from circulating RBCs by splenic macrophages (C)</p> Signup and view all the answers

    Which coagulation factor is abnormal in deficiency if both PT and APTT are prolonged?

    <p>Factor XII (A)</p> Signup and view all the answers

    Where are most coagulation factors synthesized?

    <p>Liver (C)</p> Signup and view all the answers

    What is the storage site of von Willebrand factor (vWF)?

    <p>Both A and B (D)</p> Signup and view all the answers

    In platelet storage pool defects, which aspect of platelets is affected?

    <p>Platelet Granules (C)</p> Signup and view all the answers

    If platelet clumps are observed in peripheral blood smear (PBS), what action can be taken?

    <p>Perform Platelet Function Assay (D)</p> Signup and view all the answers

    In the case of a 5-year-old boy with hepatic and renal failure, which factor deficiency is indicated by an elevated APTT and PT?

    <p>Factor 2, 7, 9, 10 (C)</p> Signup and view all the answers

    Which cell found in the nuclear remnant of lymphocytes during blood film preparation resembles a thumbprint?

    <p>Smudge Cells (B)</p> Signup and view all the answers

    What factor is NOT associated with variations in the total white blood cell (WBC) count?

    <p>Factor XIII (C)</p> Signup and view all the answers

    Which factor is critical for normal platelet adhesion?

    <p><strong>Glycoprotein Ib</strong> (D)</p> Signup and view all the answers

    What is the anticoagulant that contains 0.109 M Na citrate?

    <p>3.2% Na citrate (D)</p> Signup and view all the answers

    Which of the following is known as the Owl's Eye Appearance?

    <p>REED STERNBERG CELL (C)</p> Signup and view all the answers

    What is another name for a Band cell?

    <p>a and b (A)</p> Signup and view all the answers

    What is the reading wavelength for Siemens Advia 2120?

    <p>546nm (D)</p> Signup and view all the answers

    What is the type of smear used for malarial parasite identification?

    <p>Both thin and thick smears (C)</p> Signup and view all the answers

    Which factor affects platelet adhesion?

    <p>Aspirin intake (D)</p> Signup and view all the answers

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