A useful screening test for lead is measurement of which of the following?
Correct Answer: Coproporphyrin in urine
Description: Coproporphyrin in urine: Useful screening test. <150ug/L in non exposed persons. Amino laevulinic acid in urine: indicates lead absorption if > 5mg/L Lead level in urine: if >0.8 mg/L indicates lead exposure and absorption Basophillic stippling of RBC : sensitive parameter of hematological response Ref: Park's textbook of Preventive and Social Medicine, 21st Edition, Page-749
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Social & Preventive Medicine
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