Which of the following best describes the aim of identifying highest-risk dwellings by a risk assessor?

Identifying the highest-risk dwellings is essential for effective lead hazard management, primarily to prioritize units for lead hazard inspections. This focus allows risk assessors to allocate their resources and time efficiently, ensuring that the most vulnerable populations, particularly children, are protected from potential lead exposure. High-risk properties are typically identified based on various factors, such as the age of the home, previous lead hazards, and the presence of young children, who are more susceptible to the harmful effects of lead. By prioritizing inspections for these high-risk units, risk assessors can implement necessary interventions more swiftly and effectively, thereby enhancing public health outcomes in communities.

The other options, while related to the inspection process, do not align as closely with the primary goal of risk assessment. Ensuring all units are tested might lead to unnecessary examinations of lower-risk homes, and while reducing costs and avoiding unnecessary testing are important considerations, they do not directly support the overarching aim of effectively prioritizing risk to protect vulnerable populations.