10 mL (5 mL min.) aliquot of 24 hour Urine collected in an acid washed (metal free) container kit available from TrueMedix. Mix thoroughly. Transfer 10 mL aliquot to vial provided in the kit. Measure 24 hour total volume and record on vial and test request form. Ship refrigerated or frozen. Use powderless gloves during specimen collection. If Gadolinium, Iodine or Barium containing contrast media has been administered, the specimen should not be collected for 96 hours.
Sample Daily by 6 pm; Report Next day
Selenium is an essential element found in many over the counter vitamin preparations because its anti-oxidant activity is thought to be anti-carcinogenic. Selenium deficiency targets cardiac muscle leading to Cardiomyopathy. This assay is useful for monitoring Selenium replacement therapy specially patients with no functional bowel, on parenteral selenium supplementation. Urine quantitation helps to assess clearance of Selenium.
If Gadolinium, Iodine or Barium containing contrast media has been administered, the specimen should not be collected for 96 hours.