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.

Collection:
Collect urine for a 24 hour period, mix well and send 8.0 mL urine in a blue-capped ARUP metal-free screw capped plastic vial. Record total volume on test requisition and specimen label.

Please contact laboratory for metal-free screw capped plastic vials. Specimens in other containers will be rejected.