CORTISOL TEST

A cortisol test measures the level of cortisol in your blood, urine, or saliva to see if your levels are normal. Cortisol is a hormone that affects almost every organ and tissue in your body. Cortisol is a hormone that affects almost every organ and tissue in your body. Cortisol is made by your adrenal glands, two small glands that sit above the kidneys. A gland in your brain called the pituitary gland, makes a hormone that tells your adrenal glands how much cortisol to make. If your cortisol levels are too high or too low, it may mean you have a disorder of your adrenal glands, a problem with your pituitary gland, or a tumor that makes cortisol.