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Updated: May 28, 2026

Handheld Metal Detector Screening for Metallic Foreign Body Ingestion in Children
Published on: September 11, 2018
Metal exposure in the physically and mentally challenged children of Punjab, India
E Blaurock-Busch1, Albrecht Friedle, Michael Godfrey
1E. Blaurock-Busch PhD, is research director at Micro Trace Minerals Laboratory and advisor to the International Board of Clinical Metal Toxicology (IBCMT) and the German Medical Association of Metal Toxicology Deutsche Ärztegesellschaft für Metalltoxikologie).
Insights
Hair and urine tests confirm long-term metal exposure in children, with DMSA challenge tests validating findings. Dimercapto succinic acid (DMSA) proves a safe treatment for lead overexposure, supporting chelation therapy.
Area of Science:
- Environmental Health
- Toxicology
- Pediatric Health
Background:
- Children in Punjab, India, were assessed for trace and toxic metal exposure.
- Elevated levels of barium (Ba), cadmium (Cd), manganese (Mn), lead (Pb), and uranium (U) were detected in hair samples, indicating chronic exposure.
- Water samples revealed uranium and lead concentrations exceeding European safety standards.
Purpose of the Study:
- To determine if hair and urine analyses confirm long-term metal intoxication.
- To validate the correlation between hair mineral analysis and urine challenge test results.
- To assess the efficacy of Dimercapto Succinic Acid (DMSA) challenge tests for metal exposure in children.
Main Methods:
- Inductively Coupled Plasma Mass Spectrometry (ICP-MS) was used to analyze 53 elements in 149 hair samples.
- Urine baseline tests and DMSA (Dimercapto Succinic Acid) challenge tests were performed.
- Water quality testing was conducted on randomly selected samples.
Main Results:
- Hair analysis revealed significant levels of Ba, Cd, Mn, Pb, and U, suggesting prolonged exposure.
- Urine tests corroborated hair analysis findings for these metals.
- A DMSA challenge test increased urinary lead levels, confirming lead exposure.
Conclusions:
- Hair and urine mineral analyses are complementary diagnostic tools for chelation therapy.
- DMSA challenge tests effectively confirm chronic metal exposure identified via hair analysis.
- DMSA is a safe and effective treatment for lead overexposure in children.
Unlabelled:
We collected 149 hair samples at the Baba Farid Centre at Faridkot in Punjab, India to evaluate the trace and toxic metal concentration via ICP-MS. A total of 53 elements were tested. The hair of the children tested showed high values for Ba, Cd, Mn, Pb and U, signifying long-term exposure. Urine baseline testing supported hair analysis findings for all the elements listed above; a DMSA (Dimercapto Succinic Acid) challenge test raised urinary values for lead. Testing of six randomly selected water samples showed concentrations above the European maximum contaminant level for uranium (U) in three samples and lead (Pb) in one.Research aim:To evaluate if hair analysis and/or urine provocation confirm or refute long term metal intoxication. To support or refute that hair mineral analysis confirms urine challenge test results. To support or refute that a DMSA urine challenge test provides a valuable treatment option for metal exposure in children.
Conclusion:
Our results documented that hair and urine mineral analysis results are supportive of each other, and are both useful diagnostic tools in chelation therapy. We also documented that a DMSA challenge test confirms long term exposure as detected through hair mineral analysis. This indicates that the chelating agent DMSA (Dimercapto succinic acid) provides a safe and valuable treatment option for lead overexposure.
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