Test Details
Methodology
Inductively coupled plasma/mass spectrometry (ICP/MS)
Result Turnaround Time
2 - 4 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
Monitor exposure to iodine; evaluate for iodine deficiency disorders (IDDs), excessive iodine intake, or iodine in the workplace
| Age Groups | Health Consequences of Iodine Deficiency |
|---|---|
| Zimmerman MB. Iodine deficiency. Endocrine Reviews. The Endocrine Society. 2009; 30:376-408. | |
| All ages | Goiter Increased susceptibility of thyroid gland to nuclear radiation |
| Fetus | Abortion Stillbirth Congenital anomalies Perinatal mortality |
| Neonates | Infant mortality Endemic cretinism |
| Children and adolescents | Impaired mental function Delayed physical development |
| Adults | Impaired mental function Reduced work productivity Toxic nodular goiter; iodine-induced hyperthyroidism Increased occurrence of hypothyroidism in moderate-to-severe iodine deficiency; decreased occurrence of hypothyroidism in mild-to-moderate iodine deficiency |
Other forms of thyroid problems, namely iodine-induced hypothyroidism, autoimmune thyroiditis, and hyperthyroidism associated with excessive iodine intake have become a greater concern than deficiency disorders.1
Limitations
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.
This test was developed and its performance characteristics determined by Lab |
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration. |
Footnotes
Specimen Requirements
Specimen
Serum or plasma
Volume
0.5 mL
Minimum Volume
0.4 mL
Container
Royal blue-top (EDTA) tube or royal blue-top tube without EDTA
Collection Instructions
Separate serum or plasma immediately after the collection, and transfer to a certified metal-free transport tube (PeopleSoft No. 111166) for shipment to the laboratory.
Stability Requirements
| Temperature | Period |
|---|---|
| Room temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |
| Freeze/thaw cycles | Stable x3 |
Reference Range
| Age | Male | Female |
| 0 to 1 y | 38.6–91.9 | 38.6–91.9 |
| 2 to 5 y | 37.1–66.4 | 37.1–66.4 |
| 6 to 70 y | 31.1–64.6 | 31.1–64.6 |
| 71 to 110 y | 32.2–67.8 | 33.5–71.9 |
40.0−92.0 μg/L |
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Storage Instructions
Maintain specimen at room temperature.
Causes for Rejection
Certified metal-free plastic transport tube not submitted
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 070034 | Iodine, Serum or Plasma | 2494-3 | 070035 | Iodine, Serum or Plasma | ug/L | 2494-3 |
| Order Code | 070034 | |||||
| Order Code Name | Iodine, Serum or Plasma | |||||
| Order Loinc | 2494-3 | |||||
| Result Code | 070035 | |||||
| Result Code Name | Iodine, Serum or Plasma | |||||
| UofM | ug/L | |||||
| Result LOINC | 2494-3 |