General Information, Toxicology

Updates to Blood Lead Reporting

As of July 19, 2022, in alignment with recommendations from the Center for Disease Control and Prevention (CDC) the reference range for blood lead testing has been updated from 5 mcg/dL to 3.5 mcg/dL.

This applies to both: Lead, Blood Level [LAB98] and Lead Screen Filter Paper [LAB2111119].

In addition, at this time the low end of reporting for Lead Screen Filter Paper [LAB2111119] has increased from 1 mcg/dL to 2 mcg/dL.

Please note that any elevated capillary blood specimens should be confirmed with a venous specimen because of possible contamination.

For guidance on recommend actions based on blood lead levels see the follow resources:

• CDC: Recommended Actions Based on Blood Lead Levels | Lead | CDC (

• MDHHS: For Healthcare Providers ( (

• Poison Control Center (1-800-222-1222)

• Pediatric Environmental Health Specialty Unit (PEHSU) (Families – PEHSU,

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