"Screening for Primary Hypertension in Children and Adolescents: U.S. Preventive Services Task Force Recommendation Statement"
Annals Oct 2013
http://annals.org/article.aspx?articleid=1747317 
"Recommendation: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for primary hypertension in asymptomatic children and adolescents to prevent subsequent cardiovascular disease in childhood or adulthood."