This test measures the level of Iodine in a person's urine. Iodine is an element which is essential for healthy functioning in many organs and systems such as the thyroid, heart, liver, lungs, and immune system. Iodine aids in the production of thyroid hormones which are vital for good health. A 24 hour urine test measures the amount of iodine excreted from the body. Urinary Iodine levels can help determine if a person is getting healthy amounts of iodine from the food they eat. Unusually high or low levels of iodine can lead to a number of disorders such as hyperthyroidism or hypothyroidism.
Because levels of substances like iodine can fluctuate throughout the day, evaluating a urine collection over 24 hours can provide a more accurate evaluation than a urine test which only looks at a single collection.
This test is usually ordered when someone has had irregular results from thyroid tests such as TSH, T3 and T4. Pregnant and nursing women are often tested for iodine because deficiency can have adverse effects on pregnancy and cause developmental difficulties in infants.
Customers looking for additional thyroid testing may wish to order our Thyroid Basic Panel with TSH.
Turnaround time for the 24 Hour Urine Iodine test is typically 1-3 business days.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
After completing their order, the person taking the test should go to the lab to obtain a specimen container and any necessary instructions. The Iodine 24hr Urine test requires people void urine at 8am and discard the specimen. Then collect all urine in 24-hour period, ending with final collection at 8am the next morning.
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