Release a bounded interpretation

A trace-element concentration is evidence from a particular matrix, collection pathway, timing, and method. It may support an exposure assessment, but it does not automatically establish body burden, toxicity, or a diagnosis. Hair mercury can inform longer-term organic mercury exposure history but is vulnerable to external contamination, cosmetic treatment, and collection variability.

Reference intervals, public-health reference values, occupational Biological Exposure Indices, and critical values serve different purposes. The CDC blood lead reference value is not a toxicity threshold. ACGIH Biological Exposure Indices apply to qualified occupational health programs and are not diagnostic or general public-health reference values.

Blood lead is reportable in every state, but thresholds, age ranges, deadlines, and mechanism are jurisdiction-specific. CLIA requires immediate alert for an imminently life-threatening or laboratory-defined panic result, while the analyte list, numeric alert limit, and notification workflow are local policy. Verify the report's interval, local reporting rules, and critical-value policy before release.

Release what the validated method measured, state what the result supports, and name the policy or evidence still needed.