The clinic nurse talks with the parent of a child with Down syndrome. The parent states, 'I thought my 1-year-old would be walking by now. I am concerned.' What response by the nurse is best?

The correct answer is A: "Milestones are often delayed for children with Down Syndrome." This response is best because it acknowledges the parent's concern while providing accurate information about developmental delays commonly seen in children with Down Syndrome. Down Syndrome can impact physical development, causing delays in milestones such as walking. By reassuring the parent that delays are expected and offering support, the nurse addresses the parent's worry and provides appropriate guidance.
Other choices are incorrect because:
B: Refers immediately to physical therapy without addressing the parent's concerns or providing information.
C: Asking about other children is irrelevant to the current situation and does not address the parent's worry.
D: Asking about the child's smiling age is not relevant to the walking milestone concern and does not provide helpful guidance.