Final answer:
Excessive blood drawing can lead to iatrogenic anemia in infants, which is characterized by a decrease in the number of red blood cells. This occurs because infants have a limited amount of blood and frequent blood drawing can deplete their red blood cell supply.
Step-by-step explanation:
Excessive blood drawing can lead to a type of anemia known as iatrogenic anemia. This occurs when a large volume of blood is drawn from the infant, causing a decrease in the number of red blood cells. Infants are particularly vulnerable to this type of anemia because they have a limited amount of blood. Frequent and excessive blood drawing can deplete their red blood cell supply and lead to anemia.