A Newborn Phenotypes as Group O,D-Positive with a 1+ Direct

question 23

Multiple Choice

A newborn phenotypes as group O,D-positive with a 1+ direct antiglobulin test.The mother's antibody screening test is negative.Assuming the antibody screen is valid; one should consider the reason for the positive DAT is due to an antibody against _______________ antigen.

• A) D
• B) A or B
• C) low-incidence
• D) high-incidence

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