Thyroid Autoantibody

Overview

  • EPIC Code:
  • IMO86
  • Soft Test Code:
  • THYAB
Alternate Names
  • Anti Thyroid
  • Thyroid Antibodies
Included Tests

Thyroglobulin Antibodies; Thyroid Peroxidase (Anti-TPO)


Specimen Collection & Preparation

Patient Preparation

Patient should discontinue taking Biotin, Vitamin B7, or Vitamin H 48 hours before getting blood drawn.


Specimen Overview

Specimens stable 48 hours unspun

Specimen Requirements:

-OR-

1.5 mL Serum in a SST Gold Top Tube
Minimum Volume:
1.0 mL Serum*

* This volume does not allow for repeat testing

Processing Instructions:

Centrifuge and separate from cells within 48 hours of collection


Rejection Criteria:

Collected in a PST Mint Green Top Tube - Li Heparin


Transport and Storage:
  • Ambient (18-24°C): 4 Days
  • Refrigerated (2-8°C): 4 Days
  • Frozen (-20° C or colder): 2 Months

Clinical Interpretation

Reference Range:

ATG: 0 - 60 IU/mL
aTPO: 0 - 31 U/mL


Test Comments:

When monitoring patients over time, thyroglobulin values obtained with different methods cannot be used interchangeably, due to the difference in methods and reagent specificity. This test was performed using the Roche Cobas 8000.

Patients taking vitamin supplements containing high doses of biotin (> 5 mg/day) may have falsely increased test results generated.


Methodology:
  • Electrochemiluminescence (ECLIA)

Production Schedule

Sites Performed
  • Parkview Regional Medical Center
Days Performed
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Departments
  • Chemistry
Turn Around Time

Same Day/1 to 2 days


Coding & Compliance

CPT Coding

86376, 86800