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HelpTest Code TSHES / 500477-EX THYROID STIMULATING HORMONE (TSH), PEDIATRIC, SERUM
Additional Codes
| Software | Test Code |
|---|---|
| Label Text | TSHES |
| EPIC | LAB10152 |
| LabCorp | 500477 |
Performing Laboratory
Esoterix Laboratory Services (LabCorp Specialty Testing Group)
Useful For
Providing differential diagnosis of primary (thyroid) from secondary (pituitary) and tertiary (hypothalamus) hypothyroidism; mildly subnormal TSH values (such as seen in euthyroidal hospitalized patients) from profoundly low values of frank hyperthyroidism
Method Name
Immunochemiluminometric Assay (ICMA)
Reference Values
PREMATURE INFANTS:
26-32 weeks, day 3-4: 0.8-6.9 uU/mL (mean: 2.3 uU/mL)
FULL-TERM INFANTS:
Newborns: TSH surges within the first 15-60 minutes of life reaching peak levels between 25-160 uU/mL at about 30 minutes. Values then decline rapidly within one week.
Day 4: 1.3-16 uU/mL (mean 4.9 uU/mL)
1-11 months: 0.9-7.7 uU/mL (mean 2.9 uU/mL)
PREPUBERTAL CHILDREN:
0.6-5.5 uU/mL (mean: 1.9 uU/mL)
PUBERTAL CHILDREN AND ADULTS:
0.5-4.8 uU/mL (mean: 1.6 uU/mL)
Days and Times Test Performed
Monday through Friday
Report Available
1 Day
Specimen Type
Serum
Preferred Container
Serum Separator Tube (SST)
Preferred Volume
Serum: 1.2 mL (Serum Separator Tube (SST)) – 1 mL does not allow for repeat testing
Minimum Volume
Serum: 1 mL (Serum Separator Tube (SST))
Specimen Collection and Handling
Spin specimen, separate from clot within 1 hour of draw and send frozen.
Add On Capable
Contact Reference Lab – If add-on can never be done, report the test to the Administrative Analyst
Advance Beneficiary Notice Requirements
No ABN Required
CPT Code Information
|
CPT Code |
CPT Description |
CPT Disclaimer |
|---|---|---|
| 84443 | Thyroid Stimulating Hormone (TSH), Quantitative |
Performing Laboratory Location
Esoterix Laboratory Services (LabCorp Specialty Testing Group)
LOINC Code Information
3016-3
Clinical Significance
Helpful in subclassifying hyperthyroid patients according to the degree of TSH suppression. Aiding in the diagnosis of primary hyperthyroidism; monitoring patients on thyroid replacement therapy.
This test should be ordered ONLY by a pediatric endocrinology specialist or as a result of consultation with a pediatric endocrinology specialist. For all other patients, please order test code “TSH”.
Acceptable Alternative Container(s)
Red Top Tube