A couple is presented who underwent prenatal counseling and amniocentesis for sex determination because the wife was an obligate carrier of hemophilia B. Although the fetus was determined to be male, the parents elected not to have further testing to determine if he had hemophilia or not. The difficulties in the in utero diagnosis of hemophilia B are presented and discussed. In addition, the moral reasoning and decision-making process that this couple went through regarding the dicision not to have further fetal testing and to continue the pregnancy is presented and analyzed. These moral decisions appear to be based on family and personal ties, and bonding to the fetus after perception of fetal movement. They combine considerations of the duties and rights involved in such situations, and attend to the anticipated consequences as well.
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