My feet & ankles are swollen, hot and reddish color. I have high blood pressure, lupus, asthma, back problems, diabetic, fibromyalgia, and Padgett disease, an enlarged heart, and enlarged thymus gland.
1 Free T4 (Free Thyroxine) â considered a precursor hormone, T4 is converted to T3 as required by cells throughout the body; levels of T4 are generally much higher than T3.  Total T4 (Total Thyroxine) - Most T4 in the blood is bound to carrier proteins which make it biologically inactive. Total T4 includes unbound (free) T4 plus T4 that is bound to carrier proteins in the blood.
exists and is an alternate of . Steroid hormones are lipophilic (they are fatty molecules which do not dissolve in water.) They would not normally dissolve very well in blood. Proteins are hydrophilic and do dissolve in water. Transport proteins bind to steroid hormones and allow dissolution in blood; they also serve to keep most of the hormone molecules inactive until needed. <br /> Steroid hormones are lipophilic (they are fatty molecules which do not dissolve in water.) They would not normally dissolve very well in blood.