Laboratory Medicine

Test catalogue

Anti-Thyroid Peroxidase (ATPO)
Test Name Anti-Thyroid Peroxidase (ATPO)
Specimen Type / Requirements Container Type = 1 Gold Top (SST) Minimum Testing Volume = 0.5 mL serum Tube must fill to at least ½ or greater of its vacuum capacity
Specimen Handling Collection Instructions: Collect sample in gold or red top tube with or without gel separator. Write your initials, date and time of collection on the collection label or requisition. Special Instructions Serum or heparinized plasma free from hemolysis collected with or without gel separator. Separate serum or plasma from cells within 2 hours of collection Rejection Criteria: Gross hemolysis, Unlabeled or Not Sufficient Quantity Samples will be rejected. Stability: Stable at room temperature for 8 days, refrigerated for 8 days and frozen for 2 years. Transportation: Send sample to core lab as soon as possible.
Required Documentation
Turnaround Time (TAT) 5 days	Test Utilization N/A
Reference Value < 40 kIU/L
Test code LAB858	Methodology Chemiluminescence Assay
Testing Location SMH-Biochemistry	Other Information Last Updated: June 22, 2026

Anti-Thyroid Peroxidase (ATPO)

Test Name

Anti-Thyroid Peroxidase (ATPO)

Specimen Type / Requirements

Container Type = 1 Gold Top (SST)

Minimum Testing Volume = 0.5 mL serum

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Collect sample in gold or red top tube with or without gel separator. Write your initials, date and time of collection on the collection label or requisition.

Special Instructions Serum or heparinized plasma free from hemolysis collected with or without gel separator. Separate serum or plasma from cells within 2 hours of collection

Rejection Criteria: Gross hemolysis, Unlabeled or Not Sufficient Quantity Samples will be rejected.

Stability: Stable at room temperature for 8 days, refrigerated for 8 days and frozen for 2 years.

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

5 days

Test Utilization

N/A

Reference Value

< 40 kIU/L

Test code

LAB858

Methodology

Chemiluminescence Assay

Testing Location

SMH-Biochemistry

Other Information

Last Updated: June 22, 2026