CORTISOL, TOTAL

CORTISOL, TOTAL

Cortisol is a hormone that affects almost every organ and tissue in your body. It plays an important role in helping you to:

• Respond to stress
• Fight infection
• Regulate blood sugar
• Maintain blood pressure
• Regulate metabolism, the process of how your body uses food and energy

Cortisol is made by your adrenal glands, two small glands located above the kidneys. A cortisol test measures the level of cortisol in your blood, urine, or saliva. Blood tests are the most common way of measuring cortisol. If your cortisol levels are too high or too low, it may mean you have a disorder of your adrenal glands. These disorders can be serious if not treated.

A cortisol test is used to help diagnose disorders of the adrenal gland. These include Cushing's syndrome, a condition that causes your body to make too much cortisol, and Addison disease, a condition in which your body doesn't make enough cortisol.

You may need a cortisol test if you have symptoms of Cushing's syndrome or Addison disease.

You may also need a cortisol test if you have symptoms of an adrenal crisis, a life-threatening condition that can happen when your cortisol levels are extremely low.