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Thallium, Urine
Test Code8835
CPT Codes
83018, 82570
Includes
Creatinine
Preferred Specimen
7 mL random urine collected in an acid-washed or metal-free container
Minimum Volume
3 mL
Instructions
Avoid worksite collection. Collect urine in an acid washed or metal free plastic container. Tests performed on a specimen submitted in a non-trace element tube or non acid washed/non metal free container may not accurately reflect the patients level. If a non-trace element tube/container is received, it will be accepted for testing. However, elevated results shall be reported with a message that a re-submission with a trace element tube/container is recommended.
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 48 hours
Refrigerated: 5 days
Frozen: 14 days
Refrigerated: 5 days
Frozen: 14 days
Methodology
Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
Setup Schedule
Sets up 3 days a week.
Clinical Significance
Exposure to thallium is primarily through foods and may occur in highly selected industrial environments. Urinary thallium may be used in assessing toxicity.
