Which of the following statements about T3 and T4 is incorrect?

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T3 exhibits greater potency compared to T4T4 attaches to prealbumin in the bloodstreamT4 has a higher absorption rate than T3The level of T4 in the blood exceeds that of T3None of the above

Explanation

T3 is indeed more potent than T4, T4 binds to prealbumin (also known as transthyretin), T4 absorption is greater than T3, and T4 concentration in circulation is higher than T3. Therefore, the incorrect statement is that T4 binds to prealbumin, as this is true.