Individual test · Labcorp 104018

Cortisol, AM

This test measures the level of cortisol, a hormone produced by your adrenal glands that helps your body respond to stress and regulate metabolism. Because cortisol levels naturally peak in the early hours, this test helps show if your glands are overactive or underactive, which can explain symptoms like severe fatigue or unexplained weight changes. It helps rule out major adrenal disorders, such as Addison’s disease or Cushing’s syndrome. However, this test cannot determine the specific cause of an abnormal level or provide a final diagnosis without further evaluation.