So You Know Every Things About Hematology!

18 Questions | Total Attempts: 134

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So You Know Every Things About Hematology!

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Questions and Answers
  • 1. 
    Blood smear cannot be made from EDTA anticoagulated blood within 2 hours after collection.
    • A. 

      True

    • B. 

      False

  • 2. 
    The spreader slide should be held constantly at what angle?
    • A. 

      15 degrees

    • B. 

      25 degrees

    • C. 

      35 degrees

    • D. 

      45 degrees

    • E. 

      None of the above

  • 3. 
    Methods of blood smear preparation except:
    • A. 

      Spinner

    • B. 

      Two slide method

    • C. 

      Wedge method

    • D. 

      Cover glass method

    • E. 

      All of the above

    • F. 

      None of the above

  • 4. 
     Common causes of poor blood smear except:
    • A. 

      Drop of blood too large or too small

    • B. 

      Spreader slide pushed across the slide in a jerky manner.

    • C. 

      Smear should not cover the entire surface of the glass slide

    • D. 

      Failure to keep the entire edge of the spreader slide against the slide while making the smear.

  • 5. 
    It is done last to double check WBC count and it serves as a rough estimation of Hb and Hct and is used to determine the relative value of WBC.
    • A. 

      Hemoglobin Count

    • B. 

      Differential Count

    • C. 

      RBC Count

    • D. 

      Mean Platelet Volume

  • 6. 
    It is preferred for most hematological examinations:
    • A. 

      Venous blood

    • B. 

      Arterial blood

    • C. 

      Capillary Blood

  • 7. 
    Platelet counts higher (9-12% higher than the other)
    • A. 

      Venous blood

    • B. 

      Arterial blood

    • C. 

      Capillary blood

  • 8. 
    If no anticoagulant is used, mix blood gently by inversion of the test tube.
    • A. 

      True

    • B. 

      False

  • 9. 
    anticoagulant of choice for osmotic fragility test
    • A. 

      Oxalates

    • B. 

      Sodium Citrate

    • C. 

      EDTA

    • D. 

      Heparin

  • 10. 
    For some tests like prothrombin time & partial thromboplastin time, sodium citrate is the anticoagulant of choice, why?
    • A. 

      Factor II is relatively stable in citrated blood

    • B. 

      Factor IX is relatively stable in citrated blood

    • C. 

      Factor XIV is relatively stable in citrated blood

    • D. 

      Factor V is relatively stable in citrated blood

  • 11. 
    Is commercially available under trade name Sequester Sol.
    • A. 

      Wright's stain

    • B. 

      Oxalates

    • C. 

      Potassium Salt

    • D. 

      Heparin

  • 12. 
    used only with infants under 1 year or when it is not possible to obtain venous blood
    • A. 

      Venous blood

    • B. 

      Arterial blood

    • C. 

      Capillary blood

  • 13. 
    A powerful anticoagulant by virtue of its antithrombic and antithromboplastic activity.
    • A. 

      Oxalates

    • B. 

      Sodium Cirate

    • C. 

      EDTA

    • D. 

      Heparin

  • 14. 
    Blood that is obtained at the time of delivery:
    • A. 

      Cord blood

    • B. 

      Arterial Blood

    • C. 

      Venous Blood

    • D. 

      External Jugular Vein Puncture

  • 15. 
    Never draw blood for any laboratory test from the same extremity that is being used for IV medication.
    • A. 

      True

    • B. 

      False

  • 16. 
    Coagulation of blood can be prevented except:
    • A. 

      Removing calcium

    • B. 

      Activating thrombin and thromboplastin

    • C. 

      Removing fibrin

    • D. 

      All of the above

    • E. 

      None of the above

  • 17. 
    Majority of biochemical and blood bank tests are preferred on:
    • A. 

      Plasma

    • B. 

      Red blood cells

    • C. 

      Buffer coat

    • D. 

      Serum

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