Laboratory Test DirectoryShare
|Methodology:||Quantitative Inductively Coupled Plasma-Mass Spectrometry|
Patient Preparation: 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.
Collect: 24-hour OR Random Urine collection - 8 ml urine.
Specimen must be collected in a plastic container.
Specimen Preparation: Record total volume and collection time interval on transport tube and on test request form. Storage/Transport Temperature: Refrigerated. Also acceptable: Room temperature or frozen.
Unacceptable Conditions: Urine collected within 48 hours after administration of a gadolinium (Gd) containing contrast media (may occur with MRI studies). Acid preserved urine.
Stability: Ambient: 1 week; Refrigerated: 1 weeks; Frozen: 1 month
|Test Panel Components||Selenium ; Creatinine ; Selenium, Urine - ratio to CRT|