This test measures the level of cortisol in the body. Cortisol is a hormone that is released in response to stress and helps regulate metabolism, immune function, and blood pressure.

Abnormal levels of cortisol can contribute to the diagnosis of conditions such as Cushing's syndrome (excess cortisol production), Addison's disease (low cortisol production), and adrenal insufficiency.

In females, the test may also be used to diagnose conditions such as polycystic ovary syndrome (PCOS) or to monitor cortisol levels during pregnancy.

In males, it may be used to diagnose conditions such as hypogonadism or to monitor cortisol levels during testosterone replacement therapy.

It's important to consider the menstrual cycle in females, as cortisol levels can fluctuate during different phases of the cycle.

Additionally, certain medications, such as oral contraceptives, can affect cortisol levels and should be taken into account when interpreting the results of the test.

Biomarker(s) Measured: Cortisol