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Common Use:
To assess for lead toxicity and monitor exposure to lead to assist in diagnosing lead poisoning.

Whole blood collected in a special lead-free royal blue– or tan-top tube. Plasma collected in a lavender-top (EDTA) tube is also acceptable.

Normal Findings:
(Method: Atomic absorption spectrophotometry)

Conventional UnitsSI Units (Conventional Units × 0.0483)
Children and adults (WHO, CDC; environmental exposure)Less than 10 mcg/dLLess than 0.48 micromol/L
OSHA (occupational exposure standard)Less than 40 mcg/dLLess than 1.93 micromol/L
OSHA = Occupational Safety and Health Administration; WHO = World Health Organization; CDC = Centers for Disease Control and Prevention.

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