Test Details

Mnemonic

UARS

Ordering Code

3705670

CPT-4 Code(s)

82175

Specimen Information

Patient Preparation

Avoid seafood consumption for 48 hours prior to collection.
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Collect

24 hour urine in acid-washed or metal-free container
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Specimen Preparation

Collect 24 hour urine in acid washed container. Mix well and send 7.0 mL urine frozen in acid washed screw-capped plastic container.
Record total volume on specimen container and test requisition. Call lab for collection container. A complete heavy metal form must accompany sample. Tests performed on a specimen submitted in a non-trace element tube or non 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 results shall be reported with a message that a re-submission with a trace element tube/container is recommended.
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Minimum Volume

3.0 mL
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Transport Temperature

Frozen
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Rejection Criteria

Sample acidified with HCl
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Stability

Room temperature: 48 hours
Refrigerated: 5 days
Frozen: 14 days
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Methodology

Inductively Coupled Plasma/Mass Spectrometry
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Reference Range

<80 mcg/L
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Performing Laboratory

Quest Valencia
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