Test Overview
Test Methodology
ICR: Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
CDCR: Enzymatic Colorimetric Assay
Test Usage
Measurement of urinary iodine serves as an index of adequate dietary intake.
Reference Range *
0-17 years: Not established; > or equal to 18 years: <584 mcg/g creatinine
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Monday - Friday
Analytic Time
2 - 5 days
Soft Order Code
ICRU
Laboratory
Sendout
Reference Laboratory
Mayo ICRU
Section
Special Testing
Specimen Requirements
Collection Instructions
Send urine collected in a clean plastic container to Specimen Processing refrigerated.
Contraindications
Administration of iodine-based contrast media and drugs containing iodine, such as amiodarone, will yield elevated results.
Normal Volume
3 mL
Minimum Volume
1 mL
Storage Temperature
Refrigerated preferred, but frozen or ambient also acceptable
Additional Information
Test sent to Mayo Clinic Laboratories.
Billing
CPT Code
83789, 82570
Fee Code
AA492, AA180