This test is used to measure Cortisol levels in the blood. Cortisol blood testing is usually ordered to aid in the diagnosis of conditions related to the adrenal and pituitary glands such as Addison's Disease, Cushing's Syndrome, Adrenocortical Insufficiency or Hypersecretion.
Cortisol is a hormone produced by the adrenal glands. Proper Cortisol levels are important for helping the body to maintain a number of functions such as blood pressure, glucose levels, immune response, and stress management. Cortisol testing is often ordered with an ACTH test to help evaluate adrenal and pituitary functions.
Symptoms which may indicate irregular Cortisol levels include:
This test uses a single blood draw. Cortisol levels normally rise and fall during the day so the time the collection is taken should be considered when interpreting the results. Conditions such as pregnancy, elevated stress levels, certain medications and hormone therapy can all affect Cortisol levels. It is important to take these into account when results are interpreted.
Turnaround time for the Cortisol blood test is typically 2-3 business days.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
People ordering this test on a Doctor's recommendation should be aware of any medications they are taking which may affect Cortisol levels. People undergoing Biotin therapy should wait at least 8 hours after their last dose before being collected.
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