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Last Updated: Oct. 28, 2016 [All links fixed]

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Case Report

History

Mrs. RF is a 29-year-old female who has been admitted for delivery of her third child. She has no history of transfusion. History check reveals a group and screen was performed 11 months earlier.

Results from that admission:

• O Rh negative
• Antibody screen: negative by LISS IAT

A group and screen is ordered as a precaution and as a consequence of the difficult delivery of her second child. A healthy infant is delivered and the cord blood is sent to the lab for testing.

Tests

• The laboratory SOP for maternal-fetal testing protocol requires an ABO/Rh and DAT on the cord blood.
• A maternal group and screen is performed as ordered.
• Results

Discussion and Resolution

• Case discussion, including interactive questions with feedback.
• Resolution

Further Reading

• British Columbia Provincial Blood Coordinating Office. Technical resource manual for hospital transfusion services. Vancouver: Provincial Blood Coordinating Office. See RT.003 - Weak D typing.
• Canadian Society for Transfusion Medicine. CSTM standards for hospital transfusion services