What are the medical removal criteria based on periodic testing?

The medical removal criteria based on periodic testing are established to safeguard individuals from the harmful effects of lead exposure. In the context of New Jersey lead supervisor practices, the standard revolves around blood lead levels measured over periods of time, specifically considering the average levels across multiple tests.

The criterion stipulating that two tests averaging 50 micrograms per deciliter (ug/dl) warrants medical removal is based on well-established guidelines that protect workers from the adverse health impacts of lead. This threshold reflects a significant risk level, and it is designed to ensure that interventions are timely and effective in preventing lead-related illnesses. Averaging the levels over multiple tests allows for a more reliable understanding of an individual's exposure rather than relying on a single measurement, which may not accurately depict their ongoing risk.

In the context of the other choices, they represent higher levels or fewer tests, which do not align with the established standards for when medical removal is necessary. These standards are intended to be proactive in protecting workers' health, ensuring that individuals at risk of significant lead exposure receive appropriate medical attention and mitigation measures based on comprehensive testing results.