7 mL 24 Hour Urine

3 mL 24 Hour Urine

Acid Washed Container

Avoid seafood consumption for 48 hours prior to collection. Avoid worksite collection. Collect urine in an acid washed or metal free plastic container. Indicate start date/time and end date/time on container.

Specimen submitted in a non‑trace element tube or non acid washed/non metal free container may not accurately reflect the patient's level; elevated results will be reported with a message recommending re‑submission with trace element tube/container.