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.
Dr_ Vouyiouklis: Sluggishness can be seen in patients with hypothyroidism (underactive thyroid). If the TSH is in the normal range of 0.4-4.5 (depending on the laboratory), it is less likely that your symptoms are a result of this.TSH is a very sensitive marker for thyroid function, so while a free T4 may be additional useful information, a TSH should be able to indicate if there is thyroid dysfunction.our TSH at 5.1 remains slightly elevated, so you should probably have your dose adjusted. Please note that the TSH range is wide. Also, it can take up to six weeks to three months to see changes in thyroid function, and it can sometimes take time to see a complete response to the medication.