Hello, I'm an expert in the field of medical genetics and blood types. I can help you understand the condition known as "blue baby syndrome" and its relation to blood types.

A "blue baby" typically refers to a medical condition where a newborn appears blue due to low oxygen levels in their blood. This can be caused by a congenital heart defect known as Tetralogy of Fallot, which is not directly related to a specific blood type. However, the term "blue baby" can also be associated with a condition called methemoglobinemia, which affects the blood's ability to carry oxygen.

Methemoglobinemia is a blood disorder where the hemoglobin in the blood cells is abnormally high in an oxidized form called methemoglobin, which cannot carry oxygen effectively. There are different types of methemoglobinemia, and one form is hereditary, caused by genetic mutations. This hereditary form is not specifically linked to any blood type like A, B, AB, or O, but rather to the presence of certain genetic mutations that affect the enzymes involved in hemoglobin metabolism.

In summary, the term "blue baby" is not a blood type but rather a description of a medical condition related to oxygen transport in the blood. The condition can be due to heart defects or blood disorders, and it is not determined by the ABO blood type system.

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If the Rh factor protein is on the cells, the person is Rh positive. If there's no Rh factor protein, the person is Rh negative. A baby may have the blood type and Rh factor of either parent, or a combination of both parents. There can be a problem when an Rh negative mother has a baby with an Rh positive father.read more >>