Posted Date
Effective Date
Update Type
Specimen collection or handling and/or storage changed
CPT Code
83520
Order Code: THRYO
Referral Laboratory: Mayo Medical Laboratories
Effective April 2, 2020, Specimen requirements for Thyrotropin Receptor Antibody, Serum (THRYO) testing will now be the following, due to an instrument change at Mayo Medical Laboratories.
Current Specimen Minimum Volume |
0.5 mL |
New Specimen Minimum Volume |
0.75 mL |