For Recruitment questions, contact the County of Santa Clara Human Resources at (408) 299-6816. For Health and Hospital related recruitments, contact the Santa Clara Valley Health and Hospital System Human Resources at (408) 885-5450.
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.
Overview & Description. This test measures the level of thyroid stimulating immunoglobulin, or TSI, in the blood. A doctor can use this test to find out what is causing hyperthyroidism, also known as Graves' disease. Hyperthyroidism occurs when too much thyroid hormone is secreted by the thyroid gland. When this happens, the body's metabolic rate increases to abnormally high levels.