Iodine, 24-Hour Urine
Test Summary
Iodine is as essential element that is required for thyroid hormone production. The measurement of urinary iodine serves as an index of adequate intake.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
10 mL urine aliquot of a 24-hour urine submitted in a sterile leak-proof urine container - no preservative
Minimum Volume
2 mL
Instructions
Collect 24-hour urine without preservatives.
Patient Preparation
N/A
Storage
N/A
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 10 days
- Refrigerated: 10 days
- Frozen: Unacceptable
Limitations
N/A
Other Acceptable Specimens
Unpreserved 24-hour urine submitted in an acid-washed metal-free container
Unacceptable Specimens
N/A
Order Code
IODN24
EPIC (Premier) Code
LAB5501
Includes
CPT code 81050 may be added at an additional charge for volume measurement
CPT Code
- 82542
Billing Code
- 670110
CPT Statement
Methodology
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly VA, 20153
14225 Newbrook Drive
Chantilly VA, 20153
Department
Reference Testing
Reference Range
70-500 mcg/24 h
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday; Report available: Same day
Specimen Collection
Special Instructions
N/A
Preferred Specimen
10 mL urine aliquot of a 24-hour urine submitted in a sterile leak-proof urine container - no preservative
Minimum Volume
2 mL
Instructions
Collect 24-hour urine without preservatives.
Patient Preparation
N/A
Storage
N/A
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 10 days
- Refrigerated: 10 days
- Frozen: Unacceptable
Limitations
N/A
Other Acceptable Specimens
Unpreserved 24-hour urine submitted in an acid-washed metal-free container
Unacceptable Specimens
N/A
Result Information
Methodology
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
Testing Laboratory
N/A
Reference Range
70-500 mcg/24 h
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday; Report available: Same day