Abstract: This article examines a growing number of cases in New Zealand in which parents and guardians are required to make life and death ethical decisions on behalf of their seriously ill child. Increasingly, nurses and other practitioners are expected to more closely inform, involve and support the rights of parents or guardians in such situations. Differing moral and ethical values between the medical team and parents or guardians can lead to difficult decision making situations. The article analyses the moral parameters, processes, outcomes and ethical responses that must be considered when life and death ethical decisions involving children are made. It concludes with a recommendation that nurses should be recognised as perhaps the most suitable of all health care personnel when careful mediation is needed to produce an acceptable moral outcome in difficult ethical situations.