Thyroid Antibody Evaluation *

SIM

LAB858

CPT

86800; 86376 

Synonyms

Thyroid Peroxidase (TPO) Ab; Thyroid antibodies 

Specimen Type

Serum 

Container

Red-top or gold-top tube

Collection Instructions

Volume

Volume: 2 mL 
Minimum volume: 0.8 mL

Additional Information

Differential diagnosis of hypothyroidism and thyroiditis

Patient Preparation

Specimen Processing Instructions

Separate serum from cells if using red-top-tube

Transport Requirements

Room Temperature

Specimen Stability

Room Temperature: 14 days 

Rejection Criteria

Plasma specimen; excessive hemolysis

Reference Range

Reference Range accompanies report

Critical Value

Test Includes

Antithyroglobulin antibody and Thyroid peroxidase antibody 

Methodology

Antithyroglobulin antibody: Immunochemiluminometric assay (ICMA);

Thyroid peroxidase: Electrochemiluminescence  immunoassay (ECLIA)  

Testing Frequency

LCA

006684 

Reviewed By

Rhonda Crowe               

Reviewed Date

3/1/23

Supplemental

* Denotes Reference Lab Test