The U.S. Preventive Services Task Force recommends against routine screening for elevated blood lead levels in asymptomatic children ages 1 to 5 who are at average risk.
U.S. Preventive Services Task Force. Lead Levels in Childhood and Pregnancy: Screening recommendation statement [Internet]. 2006 Dec [cited 2014 Jan 8]. Available from: http://www.uspreventiveservicestaskforce.org/uspstf06/lead/leadrs.htm