Iodine

ChemistryAlso known as: Iodine ?Tm Ur-mCncAlso known as: Iodine 24h Ur-mCncAlso known as: Iodine 24h Ur-mRateug/mL

Measures iodine concentration in serum or plasma to assess your iodine status.

Normal Range
Consult your provider
ug/mL
Abnormal Levels
Consult your provider
Specimen Type
Blood

Why This Biomarker Matters

Adequate iodine is essential for thyroid function and metabolism. Low iodine can cause hypothyroidism, goiter, and in pregnant women, impaired fetal development. Regular monitoring ensures adequate intake.

Overview

This urine test measures iodine levels, an essential mineral required for thyroid hormone production. Iodine deficiency impairs thyroid function, potentially causing goiter (thyroid enlargement) and hypothyroidism. This test assesses whether you're consuming adequate dietary iodine from sources like iodized salt, seafood, and dairy. Iodine status is particularly important for pregnant women and developing children, as deficiency can affect brain development and growth.

Research & Evidence

191 publications

Sort:
Plant-based milk alternatives: can they replace the iodine from UK cow's milk?
Proc Nutr Soc · 2025
PMID: 40528364Review
Lesional dosimetry inI refractory metastatic differentiated thyroid cancer with BRAFp.V600E or RAS mutation treated with trametinib +/- dabrafenib followed by radioactive iodine.
Phys Med · 2026
PMID: 41861727
Pediatric papillary thyroid carcinoma: postoperative management and 14-year experience with radioiodine therapy at a Portuguese oncology centre.
Eur J Pediatr · 2026
PMID: 41942749
Feasibility of 80-kVp CTA with reduced iodine contrast in chronic limb-threatening ischemia.
Medicine (Baltimore) · 2026
PMID: 41931323
Perception and acceptance of micronutrient-Fortified Bouillon among Non-Index Household Members: A longitudinal sub-study nested within a randomized trial in Northern Ghana.
PLoS One · 2026
PMID: 41931601
Advances in umpolung annulations with hypervalent iodine diazos and sulfoxonium ylides.
Chem Commun (Camb) · 2026
PMID: 41885232
Enhanced radiation hardness of a copper iodine cluster framework scintillator using a bridging macrocyclic ligand with aggregation-induced emission properties.
Commun Chem · 2026
PMID: 41981291
Unveiling iodine mobilization pathways in high-iodine aquifer: A biogeochemical perspective.
J Hazard Mater · 2026
PMID: 41930514
Mechanical-Thermal Decoupling Engineering Unlocks Ultra-Stable Dry Thick Iodine Cathodes for Ah-Level Zinc-Based Pouch Batteries.
Adv Mater · 2026
PMID: 41965056
Letter to the Editor: an interpretable radiomics model based on dual-energy spectral CT iodine maps for predicting microsatellite instability in colorectal cancer-methodological considerations and clinical implications.
Eur J Radiol · 2026
PMID: 41905137

Research data from MEDLINE/PubMed · 191 articles

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

2494-3Primary
Iodine [Mass/volume] in Serum or Plasma
ug/mL
53872-8
Iodine [Mass/volume] in Urine collected for unspecified duration
ug/mL
26842-5
Iodine [Mass/volume] in 24 hour Urine
ug/L
2495-0
Iodine [Mass/volume] in Urine
ug/mL
2492-7
Iodine [Mass/time] in 24 hour Urine
mg/(24.h)
25936-6
Iodine [Moles/volume] in 24 hour Urine
umol/L
34320-2
Iodine [Moles/volume] in Urine
umol/L
44323-4
Iodine [Presence] in Serum or Plasma
50868-9
Iodine [Moles/mass] in Hair
nmol/g
20863-7
Iodine [Mass/volume] in Water
76657-6
Iodine [Mass/mass] in Hair
ug/g
20864-5
Iodine [Mass/volume] in Milk
ug/mL
20865-2
Iodine [Mass/mass] in Liver
ug/g
25448-2
Iodine [Moles/volume] in Serum or Plasma
umol/L
25449-0
Iodine [Moles/time] in 24 hour Urine
umol/(24.h)

Available Lab Tests

Order tests that measure this biomarker

Iodine Serum Plasma Test

$52.36

Urinary Iodine Test

$65.29
Results in 3-5 business days