Common MML Test-Ordering Errors
Part 4: Overordered Tests
JAK2 on Blood and Bone Marrow
Free Thyroxine index (FTI) and T3 Uptake
Assessing Thyroid Hormone Status in the Presence of Abnormal Binding Proteins
July 2010
Hence, laboratory tests have been developed to compensate for the presence of abnormal types or quantities of thyroxine-binding proteins. The first of these was the free thyroxine index (FTI) and the T3 uptake test, which were developed in the 1950s. These tests came into use years before the free T4 assays we use today were technically possible, and they provided the first laboratory assessment of the amount of biologically active form of thyroxine.
Assessing Thyroid Hormone Status |
Jump to section:
- Introduction
- Testing at Mayo Medical Laboratories
- Common MML Test-Ordering Errors
- Overordered Tests
- JAK2 Gene
- Outdated Thyroid Function Tests
- Thyroxine (T4)
- Assessing Thyroid Hormone Status in the Presence of Abnormal Binding Proteins
- Free Thyroxine Index (FTI)
- Free T4 Assays
- Free T4 Assay Summary
- Conclusion
- Questions?
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