Environmental Protection Agency (EPA) Lead Risk Assessor Practice Exam

What lead blood level requires investigation in children?

1. Above 30 ug/dL

2. Above 20 ug/dL or two readings between 15-19 ug/dL

3. Above 15 ug/dL

4. Above 25 ug/dL

The correct answer is: Above 20 ug/dL or two readings between 15-19 ug/dL

The requirement for investigating lead levels in children is based on established guidelines from the Centers for Disease Control and Prevention (CDC) and other health authorities. A blood lead level above 20 micrograms per deciliter (ug/dL) is significant enough to warrant immediate public health action and further assessment. Additionally, if a child has two separate readings that fall between 15 and 19 ug/dL, this also triggers the need for investigation. This approach ensures that children who may be at risk of lead exposure are monitored closely, as lead can have detrimental effects on cognitive development, behavior, and overall health. Levels lower than 20 ug/dL do not typically prompt the same level of concern and investigation, as they are often considered to be within a range that may not require immediate intervention but still warrants monitoring. While other listed options specify higher or differing thresholds, the combination of a single result above 20 ug/dL or multiple results in the 15-19 ug/dL range embodies the cautious approach needed for lead risk assessment in children. This protocol balances the need for prompt action with the necessity of not overburdening healthcare systems with lower, less urgent levels.