|Test Code||IODRU / IODU-M|
|Test||IODINE, RANDOM, URINE|
|Methodology||Inductively Coupled Plasma-Mass spectrometry (ICP-MS)|
|Description||Monitoring iodine excretion rate as an index of daily iodine replacement therapy
Correlating total body iodine load with (131)I uptake studies in assessing thyroid function
|Specimen||2 mL from a random urine collection as follows:
1. Collect in a clean, plastic urine collection container
2. Pour 2 mL into a plastic, 13-mL urine tube or a clean plastic aliquot container with no metal cap or glued insert.
3. See "Metals Analysis-Collection and Transport" in Special Instructions for complete instructions.
4. Send specimen refrigerated.
Note: High concentrations of gadolinium are known to interfere with most metals tests. If gadolinium-containing contrast media has been administered, a specimen cannot be collected for 48 hours.
|Reference Values||0-15 years: not established
> or = 16 years: 26-705 mcg/L
|Analytic Time||1 Day|
|Day(s) Test Set Up||Monday through Friday|