Test Details
Methodology
See individual test descriptions.
Result Turnaround Time
1 - 3 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Test Includes
Thyroid Peroxidase (TPO) Ab; Thyroglobulin Antibody
Use
Differential diagnosis of hypothyroidism and thyroiditis
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.
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
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Storage Instructions
Room temperature
Causes for Rejection
Plasma specimen; excessive hemolysis
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 | |
| Order Code | 006684 | |||||
| Order Code Name | Thyroid Antibodies | |||||
| Order Loinc | ||||||
| Result Code | 006676 | |||||
| Result Code Name | Thyroid Peroxidase (TPO) Ab | |||||
| UofM | IU/mL | |||||
| Result LOINC | 8099-4 | |||||
| Order Code | 006684 | |||||
| Order Code Name | Thyroid Antibodies | |||||
| Order Loinc | ||||||
| Result Code | 006706 | |||||
| Result Code Name | Thyroglobulin Antibody | |||||
| UofM | IU/mL | |||||
| Result LOINC | 8098-6 |