Lead - urine
Last updated: Thursday, 18, March, 2004
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24 hour urine collection in a lead-free container with HCl (also lead free) as preservative.
Atomic absorption spectrophotometry.
| Reference Interval|
<0.25 µmol/24 hours.
Monitoring the effect of chelation therapy in lead poisoning.
Lead excretion after EDTA infusion is the preferred investigation for past exposure to lead, if blood lead is normal.
Lead excretion >0.25 µmol/24 hours indicates an increased body burden.
Markowitz M. Curr Probl Pediatr 2000; 30(3): 62-70.