Cortisol AM


Chronic stress and elevated cortisol levels can increase your risk to a list of various chronic diseases in addition to severe depression and altered hormones and a poor quality of life.  A cortisol AM test is done to find problems of the pituitary gland or adrenal glands, such as making too much or too little hormones. The cortisol blood test measures the level of cortisol in the blood. Cortisol is a steroid (glucocorticoid) hormone produced by the adrenal gland.

Your doctor may recommend you to also take a Cortisol PM test in conjunction with AM Cortisol.

Cortisol AM


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  • Fasting Required: NO
  • Preferred Specimen: Serum
  • Reference Range(s):
    0-3 Days (infants)    
    Premature (31-35 Weeks) ≤15.0 µg/dL
    Term ≤14.0 µg/dL
    Term ≤14.0 µg/dL
    4 Days-1 Month Not established  
    2-11 Months 8 a.m. (7-9 a.m.) specimen 3.0-23.0 µg/dL
    1-17 Years 8 a.m. (7-9 a.m.) specimen 3.0-25.0 µg/dL
    >17 Years 8 a.m. (7-9 a.m.) specimen 4.0-22.0 µg/dL
  • Turnaround Time:
  • Test Prep: Must be taken at any Quest PSC before 9am
  • Limitations: Assay is not recommended when patient is receiving prednisone/prednisolone therapy due to cross reactivity with the antibody used in this assay
  • Turnaround Time: 5 Days
  • Test Code: 4212