Definition of coastâtoâcoast. 1  1 : extending or airing across an entire nation or continent a coastâtoâcoast flight a coastâtoâcoast broadcast. 2  2 : extending from one end of a playing surface (as a basketball court) to the other a coastâtoâcoast rush; also : relating to or resulting from a coast-to-coast play a coastâtoâcoast layup.
As of late 2016, at most laboratories in the U.S., the official reference range for the Thyroid Stimulating Hormone (TSH) blood test runs from approximately 0.5 to 4.5/5.0. The reference range -- also sometimes called the normal range -- is an important part of the complete picture of thyroid diagnosis and treatment. In fact,the entire TSH test as diagnostic and management tool depends on this validity.
1 If the TSH level is above normal, your doctor may determine that you are hypothyroid (underactive thyroid.). 2  If your doctor ran a test called Total T4 or Total Thyroxine, normal range is approximately 4.5 to 12.5. 3  If you had a low reading, and a high TSH, your doctor might consider that indicative of hypothyroidism.f you want to have a better idea of what your thyroid tests mean, here is some information that can help. Difficulty Level: Easy Time Required: 5 minutes. Here's How: 1  Find out your thyroid test results from your doctor's office.