Red Blood Cells (RBCs) MCQs

1. The earliest recognizable form of RBCs is:
   • Proerythroblast ✅
   • Early normoblast
   • Intermediate normoblast
   • Late normoblast
   • Reticulocyte


2. The mature red cell is biconcave disc with a diameter of:
   • 5.2 μm
   • 9.2 μm
   • 7.2 μm ✅
   • 10.3 μm


3. The normal red cell life span is approximately:
   • 10 days
   • 120 weeks
   • 120 days ✅
   • 200 days
   • 30 days


4. Target cells are found in:
   • Thalassaemia
   • Haemoglobin C disease
   • Iron deficiency anemia
   • Liver disorders
   • All of the above ✅


5. Spherocytes are NOT found in one of the following condition:
   • Congenital spherocytosis
   • Autoimmune hemolytic anemia
   • Hemolytic disease of the newborn
   • Blood transfusion
   • Iron deficiency anemia ✅


6. Anisocytosis means:
   • Increased reticulocytes
   • Presence of immature WBCs
   • Variation in the shape of RBCs
   • Presence of immature erythroid cells
   • Variation in size of RBCs ✅


7. Polychromasia corresponds to increased:
   • Red cells
   • Reticulocytes ✅
   • Ovalocytes
   • Lymphocytes
   • Basophils


8. Reticulocytes are NOT increased in one of the following conditions:
   • Haemorrhage
   • Haemolysis
   • In response to specific hematinics used in treatment of anemias
   • Aplastic anemia ✅
   • Thalassemia


9. Reticulocytes can be seen in:
   • Haemorrhage
   • Haemolysis
   • Hypoplastic anemia with hyperactive foci in the bone marrow
   • In response to treatment of anemias
   • All of the above ✅


10. Reticulocytes count is decreased in:
    • Iron deficiency anemia
    • Aplastic anemia ✅
    • Megaloblastic anemias receiving proper treatment
    • Hereditary hemolytic anemia


11. The normal RBC count for adult female is:
    • 2.8 – 3.8 x 10^12/L
    • 3.8 – 4.8 x 10^12/L ✅
    • 2.8 – 3.8 x 10^12/L
    • 3.8 – 4.8 x 10^12/L
    • 4.8 – 5.8 x 10^12/L


12. The normal Hb level for an adult male is:
    • 13 – 19 g/dl
    • 11 – 16 g/dl
    • 12 – 16 g/dl
    • 15 – 18 g/dl
    • 13 – 17 g/dl ✅


13. In adults, the normal range for mean corpuscular volume is:
    • 68 – 88 fl
    • 78 – 98 fl ✅
    • 88 – 108 fl
    • 58 – 98 fl
    • 78 – 99 fl


14. In adult males, the normal range for packed cell volume is:
    • 30 – 50 %
    • 40 – 60 % ✅
    • 40 – 50 %
    • 45 – 55 %
    • 50 – 65 %


15. In adult females, the normal range for packed cell volume is:
    • 25 – 45 %
    • 35 – 55 % ✅
    • 35 – 45 %
    • 30 – 40 %
    • 40 – 65 %


16. In adults, the normal range for mean corpuscular hemoglobin is:
    • 22-32 pg
    • 27-37 pg ✅
    • 27 – 32 pg
    • 29 – 42 pg
    • 27 – 39 pg


17. RDW indicates:
    • Hypochromia
    • Microcytosis
    • Poikilocytosis
    • Anisocytosis ✅
    • Reticulocytosis