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Laboratory Test Directory

Lead, Urine


Name Method Department Units
Lead, Urine Inductively coupled plasma/ mass spectrometry
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Specimen Requirements


Container Type Container Size Specimen Volume

24 hour urine container

N/A 8 mL

Sterile container

N/A 8 mL

Room temperature - 1 week(s)
Refrigerated - 2 week(s)
Frozen - 12 month(s)

Specimen Preparation

  • Refrigerate during collection
  • Record total volume and collection time interval on transport tube and on test request form
  • Transfer an aliquot of urine from a well-mixed collection to an ARUP Trace Element-Free Transport Tube

Reasons for Rejection

  • Use of urine preservative
  • Collection in metal container
  • Collection in glass container
  • Urine collected within 72 hours after administration of iodinated or gadolinium-based contrast media (MRI Studies)


Patient Prep: Diet, medication, and nutritional supplements may introduce interfering substances. Patients should be encouraged to discontinue nutritional supplements, vitamins, minerals, and non-essential over-the-counter medications (upon the advice of their physician). 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 post-contrast media exposure.

For 24 hour urine collection: At beginning of collection have patient void and discard this urine. Begin timing collection at this point and collect all urine into a plastic container until the end of the collection period. Refrigerate the collected urine during the 24-hour period. Have patient void and save urine at the end of the collection period. Indicate collection time interval on paperwork and/or specimen. A completed demographic requisition must accompany specimen.


Lab Form

CPT Code

  • 83655