Question 47

Drawing more than the recommended amount of an infant's blood volume may result in iatrogenic anemia.

When an infant's blood volume is exceeded during a blood draw, it can lead to iatrogenic anemia, a condition caused by medical intervention that results in a decrease in red blood cells.

A) Pernicious anemia

Pernicious anemia is primarily caused by the inability to absorb vitamin B12 due to a lack of intrinsic factor, and it is not directly related to blood volume draws. Therefore, this option does not accurately reflect the consequences of excessive blood withdrawal in infants.

B) Iatrogenic anemia

Iatrogenic anemia occurs when a patient suffers from anemia as a direct result of medical treatment or procedures. In the context of drawing more blood than recommended from an infant, this is the correct answer, as it reflects the potential for reduced red blood cell levels due to the loss of blood.

C) Hyperthermia

Hyperthermia refers to an elevated body temperature and is not a consequence of drawing excessive blood from an infant. It typically arises from environmental factors or medical conditions, making this option incorrect in relation to the question.

D) Hypothermia

Hypothermia is a condition characterized by an abnormally low body temperature. While excessive blood draw might theoretically impact an infant's temperature regulation, it is not a direct consequence of drawing more than the recommended blood volume, thus making this option incorrect.

Conclusion

Iatrogenic anemia is the only condition among the options that directly results from drawing more than the recommended blood volume in infants. The other options do not pertain to the effects of excessive blood withdrawal, thereby confirming that B is the correct answer. Understanding the consequences of medical procedures on vulnerable populations like infants is crucial for ensuring their safety and well-being.