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HelpTest Code TLB Thallium, Blood
Specimen Required
Patient Preparation: High concentrations of gadolinium and iodine are known to interfere with most metal tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.
Supplies: Metal Free B-D Tube (EDTA), 6 mL (T183)
Container/Tube: Royal blue top (EDTA) plastic trace element blood collection tube
Specimen Volume: Full tube
Collection Instructions:
1. See Metals Analysis Specimen Collection and Transport for complete instructions.
2. Send specimen in original tube. Do not aliquot.
Useful For
Detecting toxic exposure in whole blood specimens
Special Instructions
Method Name
Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
Reporting Name
Thallium, BSpecimen Type
Whole bloodSpecimen Minimum Volume
0.3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole blood | Refrigerated (preferred) | 28 days | |
| Ambient | 28 days | ||
| Frozen | 28 days |
Reference Values
0-17 years: Not established
≥18 years: <2 ng/mL
Day(s) Performed
Tuesday, Friday
Report Available
2 to 5 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
83018
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| TLB | Thallium, B | 5743-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 8149 | Thallium, B | 5743-0 |