What does the Thallium (Urine) test measure?

Why is Thallium (Urine) measured?

Thallium poisoning presents with alopecia, painful peripheral neuropathy, and gastrointestinal symptoms. Acute poisoning is rare but serious, often from intentional poisoning or accidental ingestion. Urinary thallium is the primary diagnostic biomarker. Prussian blue enhances faecal excretion and is the treatment of choice.

Reference ranges

Standard reference

<0.5 µg/g creatinine

Functional medicine optimal

Should be very low or undetectable; any elevation warrants investigation.

Units

µg/g creatinine, µg/L

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.