A Cortisol Test is done to measure the level of the hormone cortisol in the blood. Cortisol is a hormone produced by the adrenal glands. Cortisol levels increase when the pituitary gland releases another hormone called ACTH. A Cortisol Blood Test may be done to detect problems with the adrenal glands or pituitary gland.
Cortisol has many functions. It helps the body break down food for energy (a process called metabolism), and it helps regulate the immune system, which helps the body manage stress and fight infection. Cortisol levels can be affected by many normal conditions, such as physical or emotional stress or strenuous activity. Abnormal conditions, such as infection or injury, can affect cortisol levels as well.
Normally, cortisol levels rise during the early morning hours and are highest in midmorning (about 8 a.m.). They drop very low in the evening and during the early phase of sleep. However, if you sleep during the day and are up at night, this pattern may be reversed. The absence of this daily variation in cortisol levels may be one of the first signs of overactive adrenal glands, especially Cushing's syndrome.
Call LabSafe toll free at 1-888-333-LABS to speak with a Medical Counselor for further information, or simply place your order for a Cortisol Test online.
