Red Blood Cells (RBCs) MCQs
- The earliest recognizable form of RBCs is:
- Proerythroblast ✅
- Early normoblast
- Intermediate normoblast
- Late normoblast
- Reticulocyte
- The mature red cell is biconcave disc with a diameter of:
- 5.2 μm
- 9.2 μm
- 7.2 μm ✅
- 10.3 μm
- The normal red cell life span is approximately:
- 10 days
- 120 weeks
- 120 days ✅
- 200 days
- 30 days
- Target cells are found in:
- Thalassaemia
- Haemoglobin C disease
- Iron deficiency anemia
- Liver disorders
- All of the above ✅
- 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 ✅
- Anisocytosis means:
- Increased reticulocytes
- Presence of immature WBCs
- Variation in the shape of RBCs
- Presence of immature erythroid cells
- Variation in size of RBCs ✅
- Polychromasia corresponds to increased:
- Red cells
- Reticulocytes ✅
- Ovalocytes
- Lymphocytes
- Basophils
- 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
- 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 ✅
- Reticulocytes count is decreased in:
- Iron deficiency anemia
- Aplastic anemia ✅
- Megaloblastic anemias receiving proper treatment
- Hereditary hemolytic anemia
- 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
- 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 ✅
- 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
- In adult males, the normal range for packed cell volume is:
- 30 – 50 %
- 40 – 60 %
- 40 – 50 %✅
- 45 – 55 %
- 50 – 65 %
- In adult females, the normal range for packed cell volume is:
- 25 – 45 %
- 35 – 55 %
- 35 – 45 %✅
- 30 – 40 %
- 40 – 65 %
- 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
- RDW indicates:
- Hypochromia
- Microcytosis
- Poikilocytosis
- Anisocytosis ✅
- Reticulocytosis
