Incidental discovery of nonparentage – to disclose or not?

When newborns and children undergo laboratory tests, the results occasionally indicate that one of the supposed parents cannot be the genetic parent that he or she is supposed to be. Such incidental findings of nonparentage can cause considerable distress to families if they are told the results, and can cause dilemmas for health professionals about whether to reveal the findings or not. There are many putative benefits of disclosure of such results. However an article argues for universal non-disclosure of nonparentage, and recommends that the consent forms signed by parents for pediatric genetic testing state that incidentally discovered nonparentage will not be disclosed to them.

Incidental findings of nonparentage: a case for universal nondisclosure. Palmor and Fiester 2014.