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