Lead Testing 
 Source: Michigan Departmentof Health and Human Services 
 http://www.michigan.gov/lead/0,5417,7-310-66221_66223---,00.html

Data were extracted from the database of blood lead test results that all laboratories submit to CLPPP as required by the Public Health Code. The data in this report are for tested children less than age 6.
Each child was counted once each year, even if they had more than one test that year.  The counts of children by blood lead level were based on the value representing the highest blood lead level obtained from a venous blood draw, or a capillary blood test if there was no venous test that calendar year.

Please note:  While all children under 6 years should be screened for lead exposure, not all children will require lead testing.  Only those found to be at-risk by well-defined risk factors, should be tested.  Children who are found at-risk on a screening questionnaire and all medicaid enrolled children, should be tested at one year of age, two years of age or once between the ages of 3 and 6 years, if not previously tested. Therefore, the percentage of children tested will never be 100% of all children under the age of 6 years, nor should it be.  The goal is that all at-risk children are tested in a timely way.
Updated: 10/28/2016