FTI is a product of TT4 and which factor?

Prepare for the Clinical Chemistry Numericals Test. Study with comprehensive questions, each with detailed explanations. Boost your confidence and excel on your exam!

Multiple Choice

FTI is a product of TT4 and which factor?

Explanation:
Free Thyroxine Index (FTI) estimates the free portion of thyroxine by adjusting the total T4 for the body’s binding capacity. The binding factor used in this calculation is THBR, the thyroxine-binding ratio, which mirrors how many sites are available on binding proteins like TBG. By multiplying TT4 by this binding factor, the result approximates the amount of T4 that is not bound and thus effectively available. FT3 is a different hormone measurement and isn’t part of this calculation, while TBG represents the binding protein itself but isn’t the multiplier in the FTI formula. TSH is a pituitary hormone unrelated to this calculation.

Free Thyroxine Index (FTI) estimates the free portion of thyroxine by adjusting the total T4 for the body’s binding capacity. The binding factor used in this calculation is THBR, the thyroxine-binding ratio, which mirrors how many sites are available on binding proteins like TBG. By multiplying TT4 by this binding factor, the result approximates the amount of T4 that is not bound and thus effectively available. FT3 is a different hormone measurement and isn’t part of this calculation, while TBG represents the binding protein itself but isn’t the multiplier in the FTI formula. TSH is a pituitary hormone unrelated to this calculation.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy