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- Bi, Urine
Monitor exposure to bismuth
Inductively-coupled plasma/mass spectrometry (ICP/MS)
Environmental exposure: 0.3−4.6 μg/L
Urine (random or 24-hour)
Optional protocol: Instruct the patient to void at 8 AM and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning). Avoid contact with metal during collection. Screw the lid on securely.
Maintain specimen at room temperature.
Do not use preservative. Preservatives used for routine analysis may contain mercuric oxide (ie, Stabilur), which interferes with all metal testing. If both urinalysis and metal testing are ordered, please submit a separate urine specimen (containing no additive) for the metal testing.