what does an abnormal thyroid test mean
The T4 test is known as the thyroxine test. The TSH test measures the level of thyroid-stimulating hormone in your blood. These are the two most common thyroid function tests and are usually ordered together.They are routinely performed on newborn babies to identify a low-functioning thyroid gland.he T4 test is known as the thyroxine test. The TSH test measures the level of thyroid-stimulating hormone in your blood. These are the two most common thyroid function tests and are usually ordered together.