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To identify patients who are at risk for renal calculus formation or hyperoxaluria related to malabsorption.
Urine from a timed specimen collected in a clean plastic collection container with hydrogen chloride (HCl) as a preservative.
|Conventional Units||SI Units (Conventional Units × 11.1)|
|Children and adults||0–40 mg/24 hr||0–444 micromol/24 hr|