Thallium, Urine THALUR
|Method(s)||Inductively Coupled Plasma/Mass Spectrometry|
|Collect||24-hour or random urine collection. Specimen must be collected in a plastic container and should be refrigerated during collection.|
|Transport||8 mL aliquot from a well-mixed collection at 2-8ºC. (Min: 1 mL)|
Record total volume and collection time interval on transport tube and test request form.
Ambient: 1 week; Refrigerated: 2 weeks; Frozen: 1 year
Urine collected within 72 hours after administration of iodinated or gadolinium-based contrast media. Acid preserved urine. Specimens contaminated with blood or fecal material. Specimens transported in non-trace element-free transport tube (with the exception of the original device).
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.
|Preferred Specimen Collection Device(s)|