Which of the following is NOT included when determining past lead exposures?

In assessing past lead exposures, several evaluations and testing procedures are considered to understand an individual's exposure history accurately. Monthly urine tests are typically utilized for ongoing monitoring of lead levels in the body rather than for past exposure assessment. These tests can indicate current levels of lead but do not provide information about historical exposure incidents, which is what is required when determining past lead exposure.

In contrast, baseline exams and FEP (Follow-up Evaluation of Potential) testing are fundamental in establishing a foundation for understanding an individual's lead exposure history. The baseline exam specifically helps to evaluate the health status before any exposure occurs, establishing a record that can be referenced in future assessments. Authorization for respirator use is also tied to exposure assessments, as it indicates that an individual may have been in environments where lead exposure could occur, reflecting a recognition of potential past exposure.

Thus, while all the other options relate to assessing or regulating exposure to lead, monthly urine tests focus on current levels rather than helping to determine an individual's history of lead exposure.