If a pregnant woman with uncertain Rh status has a positive anti-D antibody titer, what is the recommended course regarding anti-D immunoglobulin prophylaxis?

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Multiple Choice

If a pregnant woman with uncertain Rh status has a positive anti-D antibody titer, what is the recommended course regarding anti-D immunoglobulin prophylaxis?

Explanation:
When the mother already has anti-D antibodies, she is sensitized to the RhD antigen. Anti-D immunoglobulin prophylaxis is designed to prevent sensitization in an Rh-negative mother who has not yet formed antibodies. If antibodies are already present, giving more anti-D Ig cannot prevent an immune response and may complicate antibody testing and fetal management. Therefore, anti-D prophylaxis is not indicated. Instead, management focuses on monitoring for fetal anemia and planning appropriate obstetric and neonatal care if needed.

When the mother already has anti-D antibodies, she is sensitized to the RhD antigen. Anti-D immunoglobulin prophylaxis is designed to prevent sensitization in an Rh-negative mother who has not yet formed antibodies. If antibodies are already present, giving more anti-D Ig cannot prevent an immune response and may complicate antibody testing and fetal management. Therefore, anti-D prophylaxis is not indicated. Instead, management focuses on monitoring for fetal anemia and planning appropriate obstetric and neonatal care if needed.

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