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Thyroid Stimulating Hormone Receptor Antibody (TRAb)
2002734
Ordering Recommendation

Acceptable testing for autoimmune thyroid disease.

Mnemonic
TR AB
Methodology
Quantitative Electrochemiluminescent Immunoassay
Performed
Sun-Sat
Reported
1-2 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Serum separator tube. 
Specimen Preparation
Allow serum separator to sit for 15-20 minutes at room temperature for proper clot formation. Centrifuge and separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL) 
Storage/Transport Temperature
Frozen. Separate specimens must be submitted when multiple tests are ordered. 
Unacceptable Conditions
Plasma. Grossly hemolyzed or lipemic specimens. 
Remarks
 
Stability
Ambient: 24 hours; Refrigerated: 72 hours; Frozen: 1 month 
Reference Interval
Less than or equal to 1.75 IU/L
Interpretive Data
Autoimmune thyroid disease may be confirmed when TRAb testing is positive.

Note
CPT Code(s)
83520
Components
Component Test Code*Component Chart NameLOINC
2002735TSH Receptor Antibody5385-0
* 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.
Aliases
  • Anti-Thyrotropin
  • Anti-TSHR
  • Antibodies to TSH receptor
  • Inhibitory Immunoglobulin
  • TBII
  • TBII (Thyrotropin-Binding Inhibitory Immunoglobulin)
  • Thyroid Stimulating Immunoglobulin
  • Thyroid-Stimulating Hormone Receptor (TSH Receptor) Antibody
  • Thyrotropin Receptor Antibody
  • TRAb
  • TSH Receptor Antibody
  • TSH Receptor Blocking Antibody