TRAb (TSH Receptor Binding Antibody)
Fasting Required: No

Specimen: Blood

Results: 7-10 Business Days

Description: Hyperthyroidism in Graves' disease is caused by autoantibodies to the TSH receptor (TSHR), and measurement of these TSHR antibodies can be useful in disease diagnosis and management. The majority of TSH receptor antibodies imitate the action of TSH.

Methodology: Radioreceptor Assay (RRA)

Reference Range(s): =16% Inhibition

Alternative Name(s): TBII; Thyroid Stimulating Hormone (TSH) Receptor Antibody; Thyrotropin Receptor Antibody; TSH Receptor Blocking Antibody; Thyrotropin-Binding Inhibitory Immunoglobulin

Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.