Quest Diagnostics Iodine Test
Type
Blood Testing
Biomarkers
2
Duration
30 min
Results
7 days
Urine iodine test to detect abnormal iodine levels, indicating deficiency or toxicity.
This test measures the level of iodine in your urine. Iodine is crucial for thyroid hormone production (T3 and T4), regulating metabolism, growth, and development. Low levels may signal deficiency, while high levels can indicate excess supplement use or food consumption, potentially causing thyroid dysfunction. This test helps assess iodine balance in your diet and identify potential health risks.
Key Details
- Sample
- Test-specific (blood, urine, or saliva)
- Results
- 3–10 business days
Who Is This For?
People working with functional or integrative medicine practitioners. Those seeking root-cause analysis beyond standard blood work. Longevity enthusiasts tracking advanced biomarkers. Anyone with persistent symptoms despite normal standard labs.
What's Included
Preparation Required
Fasting may be required depending on the specific marker. Follow your clinic's instructions. Some tests require morning samples for accurate results. Bring a list of all supplements — many affect these markers.
Biomarkers Tested
2Iodine is an essential trace element and an integral component of thyroid hormones. Thyroid hormones are required for normal growth and development of tissues and maturation of our bodies. Approximately 80% of iodine is excreted in the urine, making it a good marker of the previous day's intake.
Essential for thyroid hormone production and overall metabolic regulation.
Physician service fee of $6.00 added to the price.
- Category
- Diagnostic
- Sample Type
- Blood draw / urine / saliva (test-specific)
- Duration
- 30 min
- Results
- 7 days