Houston Chronicle, Feb. 13, 2008 All children in Galveston should be screened for lead to help reduce the city's high poisoning rates, a subcommittee of the Lead Task Force told the entire panel Tuesday. Federal law already requires that children on Medicaid be tested at ages 1 and 2. "If that's recommended for Medicaid children, we really think that's something we should adopt as a community," said Sharon Petronella, a member of the screening subcommittee and an associate professor in pediatrics at UTMB.