Test Details

Mnemonic

UPBA

Ordering Code

3685350

CPT-4 Code(s)

83655

Specimen Information

Patient Preparation

Patients should be encouraged to discontinue vitamins, nutritional supplements and nonessential over-the-counter medications prior to specimen collection. High concentrations of iodine may interfere with elemental testing.
Collection of urine specimens from patients receiving iodinated or gadolinium based contrast media should be avoided for a minimum of 72 hours post-exposure. Collection from patients with impaired kidney function should be avoided for a minimum of 14 days past-contrast media exposure.
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Collect

24 hour urine, refrigerate during collection
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Specimen Preparation

Mix well and send 8.0 mL urine refrigerated in a blue-capped ARUP metal-free screw-capped plastic vial. Please contact laboratory for metal-free screw-capped plastic vials. Specimens in other containers will be rejected. Record total volume on test requisition and specimen label.
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Alternate Specimen

Random Urine
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Minimum Volume

1.0 nK
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Transport Temperature

Refrigerated
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Rejection Criteria

Specimens contaminated with blood or fecal material. Specimens transported in non-trace element free transport tubes. Urine collected within 72 hours after administration of iodinated or gadolinium-based contrast media.
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Stability

Room temperature: 7 days
Refrigerated: 14 days
Frozen: 1 year
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Methodology

Quantitative Inductively Coupled Plasma/Mass Spectrometry
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Reference Range

Lead, Urine - per volume: 0.0 - 5.0 ug/L
Lead, Urine - per 24h: 0.0 - 8.1 ug/d
Lead, Urine - ratio to CRT: 0.0 - 5.0 ug/g CRT
Creatinine, Urine - per 24h: See report
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Performing Laboratory

ARUP Reference Laboratory
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New York DOH Approval Status

Yes
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