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Laboratory Test Directory

Thallium, Urine


Name Method Department Units
Thallium, Urine Quantitative Inductively Coupled Plasma-Mass Spect
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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

  • 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
  • Refrigerate during collection
  • Transport to laboratory as soon as possible

Reasons for Rejection

  • Urine collected within 48 hours after administration of gadolimium (Gd) containing contrast media (MRI studies)
  • Acid preserved urine


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. Abstinence from iodine-containing medications or contrast agents for at least 1 month prior to collecting specimens for elemental testing is recommended. Random samples also acceptable. 24 hour collection preferred in plastic container. Refrigerate during collection. At beginning of collection have patient void and discard this urine. Begin timing collection at this point and collect all urine until the end of the collection period. Have patient void and save urine at the final collection period.

CPT Code

  • 83018