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is followed as a high risk pregnancy with serial blood draws to determine the next steps.
* Once the titer of anti-D reaches a certain threshold (normally 8 to 16), serial Doppler ultrasound examinations are performed to detect signs of fetal anemia.
** Detection of increased blood flow velocities in the fetus are a surrogate marker for fetal anemia that may require more invasive intervention.
* If the flow velocity is found to be elevated a determination of the severity of anemia

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