Just don't expect it to be found in Scotland, in the vicinity of a famous lake! 1  Plesiosaurus Facts. 2  Pliosaurus Facts. 3  Meet the Apex Marine Reptiles of the Later Mesozoic Era. 4  Ichthyosaurs, The Dolphin-Like Reptiles of the Mesozoic Era. 5  The Truth About Nessie, the World's Most Famous Living Dinosaur.
TESTS. Blood tests to measure TSH, T4, T3 and Free T4 are readily available and widely used. Tests to evaluate thyroid function include the following: TSH TESTS The best way to initially test thyroid function is to measure the TSH level in a blood sample.A high TSH level indicates that the thyroid gland is failing because of a problem that is directly affecting the thyroid (primary hypothyroidism).ests to evaluate thyroid function include the following: TSH TESTS The best way to initially test thyroid function is to measure the TSH level in a blood sample. A high TSH level indicates that the thyroid gland is failing because of a problem that is directly affecting the thyroid (primary hypothyroidism).
The most common method used to detect hypothyroidism is a blood test. The tests for T3 and T4 measure circulating hormone levels. The TSH test measures the pituitary thyroid-stimulating hormone, which in turn signals the production of T3 and T4.