Urinary Iodine test (Pre & Post Loading Combo) assesses urinary levels of iodine which is needed by the thyroid gland for the production, storage and release of thyroid hormones. Inc 4 x 12.5mg Iodide
Iodine is measured by ICP-MS
When should I use
The test requires a spot urine specimen, preferably first morning void (FMV), for determination of baseline halide levels. An oral loading dose of iodine/iodide is ingested and all urine is collected for the subsequent 24 hours. Iodine is measured in the urine and the results for each element are reported as µg/gm creatinine and µg/24 hours. Iodine status is assessed by evaluation of the percentage of the ingested dose that is excreted. Low iodine excretion is suggestive of greater bodily retention and need.
Note - caution using loading doses of iodine in autoimmune thyroid conditions