Thyroid Stimulating Immunoglobulin (TSI)

Synonyms

  • HUMAN THYROID STIMULATOR (HTS)
  • LAB746
  • LONG-ACTING THYROID STIMULATOR (LATS)
  • THYROID STIMULATING IMMUNOGLOBULIN

Cerner Name

Thyroid Stim Immunoglobulin

Clinical Info

The measurement of thyroid stimulating autoantibodies, in conjunction with other clinical and laboratory findings, is used as an aid in the diagnosis of patients suspected of having Graves' disease.
 

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Specimen Volume

1 mL serum ( 0.3 mL min)

Container

Gold Top Tube

Collection Instructions

Container/Tube: Gold top tube or Red top tube
Specimen: 1 mL serum ( 0.3 mL min)
Transport Temperature: Refrigerated Serum
 
Note:  Serum must be separated from blood cells by centrifugation, ideally within 2 hours of collection.

Transport Instructions

Refrigerated Serum

Specimen Stability


Room temperature: 14 days
Refrigerated: 14 days
Frozen: 14 days
Freeze/thaw cycles: Stable x3

Methodology

The IMMULITE 2000 TSI assay designed for the specific Semi- Quantitative

Days Performed

Performing Laboratories

LabCorp

CPT

84445
 
 
Lonic Code: 30166-3

PDM

5901254

Results
Component Name Base Name Common Name External Name
THYROID STIMULATING IMMUNOGLOBULIN TSI THYROID STIMULATING IMMUNOGLOBULIN Thyroid Stimulating Immunoglobulin
THYROID STIMULATING IMMUNOGLOBULIN INDEX TSIINDEX THYROID STIMULATING IMMUNOGLOBULIN INDEX Thyroid Stimulating Immunoglobulin Index

Result Interpretation

Forms
Endocrine LAB746 build edit