What does the Caesium (Urine) test measure?

Why is Caesium (Urine) measured?

Stable caesium toxicity is rare. Elevated urinary caesium may be seen with contaminated water or occupational exposure. Some functional-medicine literature links caesium to cardiac effects, but evidence is limited and contested. Interpret elevations in clinical and exposure context.

Reference ranges

Standard reference

<5 µg/g creatinine

Functional medicine optimal

No established optimal; low-level presence is normal.

Units

µg/g creatinine, µg/L

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