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Lab Test Dictionary

Heavy Metals Panel, 24-Hour Urine (36438)


Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)

Specimen Type

Urine, Timed Collection

Performing Lab

Quest Diagnostics Valencia

Epic ID


Lab Test Days

Tuesday, Thursday and Saturday

Standard TAT

1 Days

Collection Information

Specimen Required

3-7 mL 24 Hour Urine

Container Type

Acid Washed Container

Collection Instructions

Avoid seafood consumption for 48 hours prior to collection. Avoid worksite collection. Collect urine in an acid washed or metal free plastic container. Tests performed on a specimen submitted in a non-trace element tube or no acid washed/non metal free container may not accurately reflect the patients level. If a non-trace element tube/container is received, it will be accepted for testing. However, elevated resutls shall be reported with a message that a re-submission with a trace element tube/container is recommended. Indicate start date/time and end date/time on container.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room Temp: 48 Hours; Refrigerated: 5 Days; Frozen: 14 Days

Test Volume Required

7 mL 24 Hour Urine

Minimum Test Volume

3 mL 24 Hour Urine

Processing Instructions

To avoid contamination, measure total volume from container only and aliquot urine into a acid-wash or metal-free container. Indicate total volume in comments, on specimen and on batch sheet.

Included Tests

Arsenic, Lead and Mercury

CPT Codes

82175, 83655, 83825