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Cortisol, AM Test

Cortisol, AM Test

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Performed at your local Quest Diagnostics.

Fasting Required: No

Specimen: Blood

Special Instructions: Blood MUST be drawn at 8am.

Results: 2-3 Business Days

Cortisol has a range of roles in the body. It helps break down protein, glucose and lipids, maintain blood pressure, and regulate the immune system. Heat, cold, infection, trauma, stress, exercise, obesity, and debilitating disease can influence cortisol levels. The hormone is secreted in a daily pattern rising in the early morning, peaking around 8 am, and declining in the evening. This pattern, which is sometimes called the "diurnal variation" or "circadian rhythm" changes if you work irregular shifts (such as the night shift) and sleep at different times of the day.


Clinical Significance
Cortisol is increased in Cushing's Disease and decreased in Addison's Disease (adrenal insufficiency).

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.
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Last Updated: 12 Apr 2017 08:00:33 PDT home  |  about  |  terms  |  contact
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