What constitutes the most cautious approach for a pregnant person with weak D type 4.0?

Affiliations

• ¹ Transfusion medicine specialist, chief of Laboratory Services section, NIH Clinical Center, National Institutes of Health, Bethesda, Md.
• ² Hematopathologist, transfusion medicine specialist, Canadian Blood Services, Edmonton, Alta.
• ³ Hematopathologist, transfusion medicine specialist, associate medical director of Donor and Clinical Services, Canadian Blood Services, Edmonton, Alta.
• ⁴ Hematopathologist, transfusion medicine specialist, chair of Perinatal Advisory Council, Canadian Blood Services, Edmonton, Alta.
• ⁵ Pediatric hematologist, transfusion medicine specialist, chair of Canadian Obstetric and Pediatric Transfusion Network, University Health Network, Toronto, Ont.