ARUP's Laboratory Test Directory

Thyroid Stimulating Hormone Receptor Antibody (TRAb) : 2002734

Mnemonic: TR AB

Ordering Recommendation: First-line testing for autoimmune thyroid disease.
Methodology: Quantitative Electrochemiluminescent Immunoassay
Performed: Sun-Sat
Reported: 1-2 days
Specimen Required: 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.

Stability (collection to initiation of testing): Ambient: 24 hours; Refrigerated: 72 hours; Frozen: 1 month
Reference Interval:
Less than or equal to 1.75 IU/L
Interpretive Data: Positive results are consistent with autoimmune thyroid disease.
CPT Code(s): 83520
Cross References: Anti-Thyrotropin (Thyroid Stimulating Hormone Receptor Antibody (TRAb)), Anti-TSHR (Thyroid Stimulating Hormone Receptor Antibody (TRAb)), TBII (Thyroid Stimulating Hormone Receptor Antibody (TRAb)), TBII (Thyrotropin-Binding Inhibitory Immunoglobulin)  (Thyroid Stimulating Hormone Receptor Antibody (TRAb)) , Thyrotropin Receptor Antibody (Thyroid Stimulating Hormone Receptor Antibody (TRAb)), TRAb (Thyroid Stimulating Hormone Receptor Antibody (TRAb)), TSH Receptor Antibody (Thyroid Stimulating Hormone Receptor Antibody (TRAb)), TSH Receptor Blocking Antibody (Thyroid Stimulating Hormone Receptor Antibody (TRAb))