Thyroid Peroxidase Antibody

Overview

  • EPIC Code:
  • IMO424
  • Soft Test Code:
  • THYPR
Alternate Names
  • Anti-TPO
  • Microsomal Antibody
  • Thyroid Peroxidase Abs
  • TPO Ab

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-

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

* This volume does not allow for repeat testing

Processing Instructions:

Centrifuge and separate from cells within 48 hours of collection


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

Clinical Interpretation

Reference Range:

0 - 31 U/mL


Test Comments:

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

CDM

00910068


CPT Coding

86376