Test Details
Methodology
See individual tests.
Result Turnaround Time
Within 1 day
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
Test Includes
Free thyroxine index (FTI); T3 uptake (THBR); thyroid-stimulating hormone (TSH); thyroxine (T4); tri-iodothyronine (T3)
Specimen
Serum
Volume
2.5 mL
Minimum Volume
1.5 mL (Note: This volume does not allow for repeat testing.)
Container
Red-top tube or gel-barrier tube
Storage Instructions
Refrigerate
Causes for Rejection
Plasma specimen
Collection Instructions
If a red-top tube is used, transfer separated serum to a plastic transport tube.
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x3 |
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 027011 | Thyroid Profile II | 004264 | TSH | uIU/mL | 11580-8 | |
| 027011 | Thyroid Profile II | 001149 | Thyroxine (T4) | ug/dL | 3026-2 | |
| 027011 | Thyroid Profile II | 001156 | T3 Uptake | % | 3050-2 | |
| 027011 | Thyroid Profile II | 001164 | Free Thyroxine Index | 32215-6 | ||
| 027011 | Thyroid Profile II | 002188 | Triiodothyronine (T3) | ng/dL | 3053-6 | |
| Order Code | 027011 | |||||
| Order Code Name | Thyroid Profile II | |||||
| Order Loinc | ||||||
| Result Code | 004264 | |||||
| Result Code Name | TSH | |||||
| UofM | uIU/mL | |||||
| Result LOINC | 11580-8 | |||||
| Order Code | 027011 | |||||
| Order Code Name | Thyroid Profile II | |||||
| Order Loinc | ||||||
| Result Code | 001149 | |||||
| Result Code Name | Thyroxine (T4) | |||||
| UofM | ug/dL | |||||
| Result LOINC | 3026-2 | |||||
| Order Code | 027011 | |||||
| Order Code Name | Thyroid Profile II | |||||
| Order Loinc | ||||||
| Result Code | 001156 | |||||
| Result Code Name | T3 Uptake | |||||
| UofM | % | |||||
| Result LOINC | 3050-2 | |||||
| Order Code | 027011 | |||||
| Order Code Name | Thyroid Profile II | |||||
| Order Loinc | ||||||
| Result Code | 001164 | |||||
| Result Code Name | Free Thyroxine Index | |||||
| UofM | ||||||
| Result LOINC | 32215-6 | |||||
| Order Code | 027011 | |||||
| Order Code Name | Thyroid Profile II | |||||
| Order Loinc | ||||||
| Result Code | 002188 | |||||
| Result Code Name | Triiodothyronine (T3) | |||||
| UofM | ng/dL | |||||
| Result LOINC | 3053-6 |