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Thyrotropin Receptor Antibody (TRAb)
MessagePatient Preparation: For 12 hours before specimen collection Do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins. Patient should not be receiving heparin treatment. Collect a full tube, following standard venipuncture techniques.
Test Code
LAB574 TRAB
Alias/See Also
TRAB
CPT Codes
83520
Includes
@BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@
Instructions
Minimum Testing Volume: 0.75 mL Serum Transport Temperature: Refrigerated Stability: Ambient: N/A Refrigerated : 7 daysFrozen: 90 days Causes for Rejection: Gross hemolysisGross icterus
Report Available
4-Days
Clinical Significance
1230170317
Last Updated: May 18, 2026