Antepartum testing for vasa previa: current standard of care.

Vasa previa is a rare accident in obstetrics with high fetal mortality. There are simple tests available to distinguish fetal from maternal blood. Recently it has been called into medicolegal question whether patients with third-trimester bleeding need to be tested for fetal bleeding. We surveyed 100 community hospitals and all the medical schools in the United States in an attempt to answer the question. It appears that the standard of care in the United States does not require such testing.