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.
Thyroid function test. A blood test measuring your hormone levels is the only accurate way to find out whether there's a problem. The test, called a thyroid function test, looks at levels of thyroid-stimulating hormone (TSH) and thyroxine (T4) in the blood.our GP may recommend that you have a repeat blood test every so often to see whether you eventually develop an underactive thyroid. Blood tests are also sometimes used for other measurements, such as checking the level of a hormone called triiodothyronine (T3).