Cortisol

Cortisol used to establish the diagnosis of adrenocortical insufficiency, Addison disease, adrenocortical hypersecretion, Cushing syndrome. Malfunction of the organs in the hypothalamic-pituitary-adrenal cortex axis will result in alteration of the cortisol levels.

Note:Pregnancy, contraceptives and estrogen therapy give rise to elevated cortisol concentrations. In samples from patients who have been treated with prednisolone, methylprednisolone or prednisone, falsely elevated concentrations of cortisol may be determined. The time of sample collection must be taken into account when interpreting results due to the cortisol secretion circadian rhythm. Severe stress can also give rise to elevated cortisol levels. In patients receiving therapy with high biotin doses (i.e.>5 mg/day), no sample should be taken until at least 8 hours after the last biotin administration.

Preparation: No special preparation is needed. Fasting is not required for this blood test. In general, being well hydrated (drinking plenty of water before the blood draw) will usually make your veins somewhat easier to find.

Estimated time to receive results is 1-2 days.

Please be advised, that our services are strictly self pay and are not eligible for submission as a claim to your health insurance provider. However, you can submit the receipt for reimbursement to many Flexible Spending and Health Savings Accounts for reimbursement.

 

Sample of Cortisol test

Cortisol: Serum cortisol concentrations normally show a diurnal variation. Maximum concentrations are usually reached early in the morning and then concentrations decline throughout the day to an evening level that is about half of the morning concentration. Therefore, for interpretation of results, it is important to know the collection time of the sample.

For more Information on any of your lab test results

  • Consult your physician
  • Review the information on the independent, non-profit web site: www.labtestsonline.org

These are not intended as diagnostic comments, but only to give you sufficient information for further discussion with your physician. It is important that you promptly consult your physician regarding any abnormal findings

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