Recommended for determination of iodine excess and monitoring iodine overload in patients administered iodine-containing medications. This test reports total iodine from all iodine-containing species present in the specimen but does not determine the chemical form (species) of the iodine present. For the assessment of nutritional status, Iodine, Urine (2007465) is preferred.
- Patient Preparation
- Diet, medication, and nutritional supplements may introduce interfering substances. Patients should be encouraged to discontinue nutritional supplements, vitamins, minerals, nonessential over-the-counter medications for 48 hours (upon the advice of their physician). In addition, the administration of iodine-based contrast media and drugs containing iodine may yield elevated results. During venipuncture, do not use disinfectants (such as Betadine) that contain iodine.
- Royal blue (no additive).
- Specimen Preparation
- Separate serum from cells ASAP or within 2 hours of collection. Transport 2 mL serum in an ARUP Trace Element-Free Transport Tube (ARUP supply #43116) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. (Min: 0.5 mL)
- Storage/Transport Temperature
- Unacceptable Conditions
- Specimens not received in Trace Element Free transport tubes. Separator tubes and specimens that are not separated from the clot within 6 hours. Serum collected within 48 hours after administration of a gadolinium (Gd) or iodine (I) containing contrast media (may occur with MRI studies). Plasma.
- Ambient: 30 days; Refrigerated: 30 days; Frozen: 30 days
|Component Test Code*||Component Chart Name||LOINC|
- I serum
- serum iodine
- serum iodine concentration