 Purdy also points out that sustaining such pregnancies is ethically problematic because it involves extreme interventions on women's bodies without their consent. Both Lindemann and Purdy question whether such extraordinary and expensive medical interventions, aimed at saving a fetus who is not yet a baby, are a just or reasonable use of medical resources (especially if the fetus stands a low chance of survival and normal development). Lindemann worries, furthermore, that such extraordinary measures help enforce an image of the fetus as already a person with a claim on resources as large as or even larger than that of existing persons.