This, in turn, can lead to infections, acne, and other skin problems. If you want an efficient routine, these step-by-step instructions will teach you how to clean makeup brushes in less than five minutes: 1. Turn on your faucet and let the water run until it is warm.
protein-bound iodine test (PBI). Blood test to measure the concentration of thyroxine (T4) circulating in the bloodstream. The iodine becomes bound to theprotein in the blood and can be measured. Useful in extablishing thyroid function.
The thyroid hormones, triiodothyronine (T3) and its prohormone, thyroxine (T4), are tyrosine-based hormones produced by the thyroid gland that are primarily responsible for regulation of metabolism. Iodine is necessary for the production of T 3 and T 4.hyroxine is produced by attaching iodine atoms to the ring structures of tyrosine molecules. Thyroxine (T 4) contains four iodine atoms. Triiodothyronine (T 3) is identical to T 4, but it has one less iodine atom per molecule.