Thyroid receptor antibody

Alternative names, keywords

Thryroid receptor antibodies, TRAb, TSH receptor antibody

Samples required

5 mL clotted blood. Smaller tubes are available for paediatric samples.

Test indications

Indicated for the investigation of thyrotoxicosis (Graves' disease) and thyroid-disease-affected pregnancy.

Test information

_{Please note this test has not been UKAS accredited.}

Reference range

Negative: < 2.9 IU/L

Equivocal: 2.9 - 3.3 IU/L

Positive: > 3.3 IU/L

Please note the IU/L used in this assay are based on the 2nd WHO international standard for thyroid stimulating antibody and are not directly comparable to the units of other anti-TSH-R assays.

Turnaround time

14 days.

Enquiries

Immunology (Referrals)