This test measures the level of cortisol in the blood.
This test measures the level of cortisol in the blood. Cortisol is a hormone made by the adrenal glands, which helps control many key processes in the body. For example abnormal cortisol levels may affect:
The level of cortisol in the blood generally peaks in the morning and falls to its lowest point around midnight. Cortisol levels can be affected by:
Your healthcare provider may order a cortisol test if you have symptoms of an abnormal level of cortisol in your blood. A high level of cortisol (Cushing syndrome) can cause:
A low level of cortisol (Addison disease) can cause:
Cortisol testing may also be recommended if a woman has irregular menstrual periods and increased facial hair or a child has delayed development and short stature.
In an adult, the blood sample is taken by placing a needle in a vein in the arm. In some cases, urine and/or saliva are tested.
This care path's costs do not include the charge to draw blood from a vein (venipuncture). There will only be one charge to draw blood, even if multiple tests are being performed on the samples that are taken.
What should I ask my healthcare provider before having this test?
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