Ordering RecommendationRecommendations when to order or not order the test. May include related or preferred tests.
Acceptable test secondary for autoimmune thyroid disease.
MnemonicUnique test identifier.
TSIG
MethodologyProcess(es) used to perform the test.
Semi-Quantitative Chemiluminescent Immunoassay
PerformedDays of the week the test is performed.
Sun-Sat
ReportedExpected turnaround time for a result, beginning when ARUP has received the specimen.
Within 24 hours
New York DOH Approval StatusIndicates test has been approved by the New York State Department of Health.
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Serum Separator Tube (SST), Green (Lithium Heparin), or Lavender (K EDTA).
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Storage/Transport Temperature
Frozen.
Unacceptable Conditions
Remarks
Stability
After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 year
Reference IntervalNormal range/expected value(s) for a specific disease state. May also include abnormal ranges.
0.54 IU/L or less
Consistent with healthy thyroid function or non-Graves thyroid or autoimmune disease. Those with healthy thyroid function typically have results less than 0.1 IU/L.
0.55 IU/L or greater
Consistent with Graves disease (autoimmune hyperthyroidism).
Interpretive DataBackground information for test. May include disease information, patient result explanation, recommendations, details of testing, associated diseases, explanation of possible patient results.
This assay specifically detects thyroid stimulating autoantibodies. For diagnostic purposes, the results obtained from this assay should be used in combination with clinical examination, patient medical history, and other findings.
CPT CodesThe American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
AliasesOther names that describe the test. Synonyms.
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