White Blood Cell Count in Hematology
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Questions and Answers

What is the function of white blood cells?

  • To produce antibodies
  • To carry oxygen in the blood
  • To remove dead cells and debris from the tissues (correct)
  • To transport nutrients throughout the body
  • What is the principle of diluting the blood for white blood cell counting?

  • To convert hemoglobin into hematin
  • To maintain isotonic solution for white blood cells (correct)
  • To color the nuclei of white blood cells
  • To darken the red blood cell nuclei
  • What is the composition of Turk's diluting fluid?

  • Glacial acetic acid, ethanol, distilled water
  • Methyl alcohol, acetyl chloride, deionized water
  • Glacial acetic acid, gentian violet, distilled water (correct)
  • Gentian violet, hydrogen peroxide, saline solution
  • Which instrument is used for white blood cell counting?

    <p>Hemocytometer</p> Signup and view all the answers

    What is the main difference in appearance between white blood cells and red blood cells?

    <p>Size and lack of nucleus</p> Signup and view all the answers

    Which type of haemoglobin is predominant in the adult, constituting about 95% of the total?

    <p>Hemoglobin A2 (α2δ2)</p> Signup and view all the answers

    Which type of haemoglobin is the main haemoglobin during the last 7 months of development in the uterus?

    <p>Hemoglobin F (α γ )</p> Signup and view all the answers

    Which type of haemoglobin ceases to exist around the 12th week (3rd month) of pregnancy?

    <p>Hemoglobin Gower-1 (ζ2ε2)</p> Signup and view all the answers

    Which type of haemoglobin has been proposed as a subject for reactivation in adults with severe β thalassemia?

    <p>Hemoglobin Gower-1 (ζ2ε2)</p> Signup and view all the answers

    Which type of haemoglobin has been proposed as a candidate for reactivation in cases of severe α thalassemia despite its instability?

    <p>Hemoglobin Portland-1(ζ2γ2)</p> Signup and view all the answers

    Which type of haemoglobin is the primary embryonic hemoglobin composed of 2 zeta or alpha with 2 epsilon chains?

    <p>Hb Gower-1 (ζ2ε2)</p> Signup and view all the answers

    Which type of haemoglobin has been proposed as a candidate for reactivation in cases of severe α thalassemia despite its instability?

    <p>Hb Portland-1 (ζ2γ2)</p> Signup and view all the answers

    Which type of haemoglobin is existing at low levels during embryonic and fetal life in the form of Hb Portland-1(ζ2γ2 / 2 zeta & 2 gamma) and Hb Portland-2(ζ2β2 / 2 zeta & 2 beta)?

    <p>Hb Portland-1 (ζ2γ2)</p> Signup and view all the answers

    Which type of haemoglobin ceases to exist around the 12th week (3rd month) of pregnancy?

    <p>Hb Gower-1 (ζ2ε2)</p> Signup and view all the answers

    Which type of haemoglobin is the main Hb during the last 7 months of development in the uterus and persists in the newborn until roughly 6 months old?

    <p>Hemoglobin F (α γ )</p> Signup and view all the answers

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