Final answer:
The nurse should identify lack of social support as a risk factor for future child maltreatment. This stands out from the other options because social isolation and related stresses can impact a parent's ability to cope, thus increasing the risk of maltreatment.
Step-by-step explanation:
When evaluating risk factors for future child maltreatment, one characteristic that stands out is lack of social support. Numerous studies indicate that parents, particularly young or new ones, may be less capable of coping with the stresses of parenthood without adequate support. Risks associated with child maltreatment include factors like social isolation, substance abuse, depression, and low parental education. While maternal age above 35 years can be associated with certain genetic risks, it does not directly contribute to an increased risk of child maltreatment. A history of preterm birth does not inherently elevate the risk of child abuse or neglect. Regular prenatal care attendance is, in fact, a protective factor, as it generally reflects better maternal health practices and engagement with healthcare systems that can offer support and education. Therefore, the correct answer is Option 2: Lack of social support.