Voltage is analogous to pressure, so the voltage rating is the same thing as the pressure rating on a pressurized tank. If you apply too much pressure, both a capacitor and a tank will explode.
Speaking roughly, normal levels of thyroid-stimulating hormone (TSH) are in the range of 0.4 to 4.0 mIU/L. However, each laboratory and test manufacturer identifies its own normal TSH range. This is based on the test, the equipment being used, and the patients being tested.
This leads to high levels of TSH and low levels of free T4. If your free T4 levels are too lowâthe normal range for T4 is 5 to 13.5 micrograms per deciliterâit's a possible indicator that you have hypothyroidism, even if your previous TSH tests came back normal.Again, the normal ranges vary from lab to lab. Anti-thyroid Microsomal Antibodies Testing.our doctor will measure your TSH levels with a blood test. TSH levels are determined by ranges (all figures in mU/Lâmilliunits per liter). Below are the ranges, according to the American Thyroid Association. However, these numbers are not set in stone.