Cortisol Serum Evening: 4pm

The Cortisol Serum (Evening Sample) test measures the levels of cortisol hormone in the blood. Cortisol is a vital hormone produced by the adrenal glands in response to stress and plays an important role in various bodily functions such as metabolism, immune response and body’s stress response system.

The Cortisol Serum (Evening Sample) test is conducted during the evening because cortisol follows a diurnal pattern, peaking in the morning and falling by evening. Testing in the evening helps confirm if this pattern is maintained, which is crucial for diagnosing disorders related to cortisol production. Deranged cortisol levels can indicate conditions such as adrenal insufficiency (Addison’s disease), cortisol excess (Cushing’s syndrome) or other disorders affecting these glands. Additionally, this test helps diagnose and monitor conditions related to stress, sleep disorders, metabolism and overall hormone balance.