When a blood test was performed on Cindy's fetus,the doctors found some of Cindy's red blood cells in the fetus's circulatory system.We know that this
A)is normal because the mother is the source of red blood cells for the fetus.
B)is normal because the mother's red blood cells are a source of oxygen for the fetus.
C)indicates a problem with the placenta,which should block the mother's red blood cells.
D)indicates a problem with the amnion,which should eliminate the mother's red blood cells.

Question

Quizplus · Accepted Answer

The placenta should normally act as a barrier to prevent the mother's red blood cells from entering the fetus's circulation system. If the mother's red blood cells are found in the fetus's circulatory system, it could indicate a problem with the placenta, allowing for the exchange of blood between the mother and fetus. This condition is known as fetal-maternal hemorrhage and requires medical attention.

When a Blood Test Was Performed on Cindy's Fetus,the Doctors