What toxicity may result from the xenobiotic responsible for the finding on this plain film? Answer: reduced iron, found in heating pads and instant hand warmers, may result in elevated serum iron concentrations and subsequent iron toxicity
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Disposable heating pads are commonly used products, with reduced iron as their active ingredient. Reduced iron is not expected to cause significant toxicity when ingested orally. We report a case of accidental heating pad ingestion seen on abdominal plain films that resulted in significantly elevated serum iron concentrations.
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