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Laboratory:

Clinical Biochemistry (SENDOUTS)

Test Name:

THALLIUM - (U)

Test Code: MISC

Clinical Information:

Test Indications: Detecting toxic thallium exposure. Thallium is used in the manufacturing of electronic devices, switches, and closures. It had previously been used in rodenticides. The greatest exposure can occur from eating food (fruits and vegetables) since its easily taken up by plants through the roots. Cigarette smoking is also a source of exposure. Most thallium is excreted in the urine and can be found within an hour after exposure and be detected as long as 2 months post exposure.
Test Approval Requirements: F260-11-02 Biochemistry Approval for Test Referral Form

Collection Devices:

Preferred Device:	1 - Urine Collection Container - 24 h Urine Collection Container - 24 h Manufacturer: VWR Scientific Products/Simport Plastics Catalogue #: CA73960-110
Alternate Device:	1 - Urine Collection 12 mL Tube Urine Collection 12 mL Tube Manufacturer: Sarstedt Canada Inc. (vendor) Catalogue #:

Specimen Required:

Urine: 10.0 mL

Specimen Stability:
Ambient: 14 days
Refrigerated: 11 months
Frozen: 11 months

Referral:

Urine: 10.0 mL

Shipping & Storage: Collect and transfer 10 mL in a metal-free specimen vial. State ’24 h urine’, ’collection date’ and ’total volume’ or indicate ’Random’. Store and send refrigerated to In-Common Laboratories.
Referred Out Location: In-Common Laboratories

Requisition:

_SH Urine Testing Requisition (R250-10-95)

Reference Values:

Method of Analysis: ICP-MS

24 hr Urine , In-Common Laboratories Reference Values

Random Urine , In-Common Laboratories Reference Values

Availability:

Within 4 Weeks