Thallium, Whole Blood
0099610
 
Ordering Recommendation
Mnemonic
THALB
Methodology
Quantitative Inductively Coupled Plasma-Mass Spectrometry
Performed
Tue, Fri
Reported
1-5 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Diet, medication, and nutritional supplements may introduce interfering substances. Patients should be encouraged to discontinue nutritional supplements, vitamins, minerals, and non-essential over-the-counter medications (upon the advice of their physician).  
Collect
Royal blue (K2EDTA or Na2EDTA).  
Specimen Preparation
Transport 7 mL whole blood in the original collection tube. (Min: 0.5 mL)  
Storage/Transport Temperature
Room temperature. Also acceptable: Refrigerated.  
Unacceptable Conditions
Heparin anticoagulant. Frozen specimens.  
Remarks
 
Stability
If the specimen is drawn and stored in the appropriate container, the trace element values do not change with time.  
Reference Interval
Effective May 20, 2013
0.0-2 µg/L
Interpretive Data
Blood thallium levels reflect recent exposure as thallium has a biological half-life of approximately 2 to 4 days. Blood levels greater than 100 µg/L are considered toxic and greater than 300 µg/L indicate severe ingestion. After severe thallium poisonings, reported symptoms have varying times of onset and include gastroenteritis, multi-organ failure and neurologic injury. Peripheral neuropathy and alopecia are well-documented effects of acute and chronic exposure. Human health effects from low-level thallium exposure are unknown.
Note
Elevated results from noncertified trace element-free collection tubes may be due to contamination. Elevated concentrations of trace elements in blood should be confirmed with a second specimen collected in a tube designed for trace element determinations, such as a royal blue (K2EDTA) or (Na2EDTA) tube.
CPT Code(s)
83018
Components
Component Test Code*Component Chart Name
0099610Thallium, Blood
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • Tl
  • TLB
  • WB thallium