Interpreting and Managing Blood Lead Levels <10 µg/dL in Children and Reducing Childhood Exposures to Lead Recommendations of CDC's Advisory Committee on Childhood Lead Poisoning Prevention.
http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5608a1.htm
CDC. Managing Elevated Blood Lead Levels Among Young Children: Recommendations from the Advisory Committee on Childhood Lead Poisoning Prevention
http://www.cdc.gov/nceh/lead/CaseManagement/caseManage_appendixes.htm
NOTE: A confirmed elevated blood lead level is a child with one venous blood specimen >10 μg/dL or two capillary blood specimens >10 μg/dL drawn within 12 weeks of each other (Council of State and Territorial Epidemiologists cited in Meyers, 2003).