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Thyroid Antibodies

CPT: 86376; 86800
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Test Includes

Thyroid Peroxidase (TPO) Ab; Thyroglobulin Antibody


Special Instructions

This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H, or coenzyme R). It is recommended to ask all patients who may be indicated for this test about biotin supplementation. Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.


Expected Turnaround Time

1 - 3 days


Related Documents

For more information, please view the literature below.

Thyroid Testing: Assessing Thyroid Disease in Your Patients


Specimen Requirements


Specimen

Serum


Volume

2 mL


Minimum Volume

0.8 mL (Note: This volume does not allow for repeat testing.)


Container

Red-top tube or gel-barrier tube


Storage Instructions

Room temperature


Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days


Causes for Rejection

Plasma specimen; excessive hemolysis


Test Details


Use

Differential diagnosis of hypothyroidism and thyroiditis


Methodology

See individual test descriptions.


LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
006684 Thyroid Antibodies 006676 Thyroid Peroxidase (TPO) Ab IU/mL 8099-4
006684 Thyroid Antibodies 006706 Thyroglobulin Antibody IU/mL 8098-6

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