A useful screening test for lead is measurement of which of the following?
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
Coproporphyrin in urine
Amino laevelunic acid in urine
Basophil in urine
Lead in morning urine sample