Tests
17-Hydroxyprogesterone Test
A 17-hydroxyprogesterone test measures the amount of 17-hydroxyprogesterone (17-OHP) in a sample of your blood. 17-OHP is a substance that your adrenal glands make. Health care providers can use this test to help diagnose a group of uncommon genetic disorders that affect the adrenal glands. These genetic adrenal gland disorders are called congenital adrenal hyperplasia (CAH). Your adrenal glands are two small organs that sit on top of each kidney. They make different types of hormones , which are chemical messengers in your bloodstream that control the actions of certain cells or organs.