A routine medical checkup for a Trenton toddler uncovered dangerous lead levels. A mother struggled to navigate home inspections and health risks—and then made a hard choice.By Anna MattsonTRENTON, N.J.—Amber DeLoney-Stewart brought her 2-year-old, Valencia, to the doctor’s office for an annual checkup in early September. Valencia was a happy girl with round cheeks, and the appointment was a routine physical exam, with vaccinations and some bloodwork. But the lab result proved to be anything but routine.