This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Iron deficiency anemia, Subject name: Pathology
Peripheral smear with small pale red cells, anisocytosis and poikilocytosis is suggestive of: 
Select and explain. 
A. Aplastic anemia, B. Iron deficiency anemia, C. Hereditary spherocytosis, D. Megaloblastic anemia
B: Iron deficiency anemia
Answer: B: Iron deficiency anemia 
Explanation: Anisocytosis , poikilocytosis along with small pale RBC in peripheral smear suggests the diagnosis of iron deficiency anemia. OTHER OPTIONS: - Aplastic anemia presents with Normochromic normocytic anemia - Megaloblastic anemia presents with macrocytic anemia - Hereditary spherocytosis is presents with Normocytic anemia.