What should your cortisol levels be?

For most tests that measure cortisol levels in your blood, the normal ranges are: 6 a.m. to 8 a.m.: 10 to 20 micrograms per deciliter (mcg/dL). Around 4 p.m.: 3 to 10 mcg/dL.

What is a high cortisol level in blood?

High levels of cortisol may mean you have Cushing’s syndrome, while low levels may mean you have Addison disease or another type of adrenal disease. If your cortisol results are not normal, it doesn’t necessarily mean you have a medical condition needing treatment.

What level of cortisol is considered low?

When a technician carries out the cortisol level test between 6 a.m. and 8 a.m., the results will typically be within the range of 10–20 micrograms per deciliter (mcg/dL) in a healthy person. A doctor will generally consider measurements outside of this range to be abnormally low or high.

Is cortisol level 200 low?

An early morning plasma cortisol, measured within one hour of waking, below 200 nmol/L strongly suggests adrenal insufficiency. Conversely, a plasma cortisol greater than 500 nmol/L excludes the diagnosis and obviates the need for an ACTH stimulation test.

What cortisol level indicates Cushing’s?

The 24-hour urinary cortisol test measures the amount of cortisol being produced within the urine over the course of an entire day. Levels higher than 50-100 micrograms per day in an adult suggest the presence of Cushing’s syndrome.

What is a normal cortisol level at 11am?

Optimal Result: 0.75 – 2.93 nmol/L.

What are the symptoms of too much cortisol?

Too much cortisol can cause some of the hallmark signs of Cushing syndrome — a fatty hump between your shoulders, a rounded face, and pink or purple stretch marks on your skin. Cushing syndrome can also result in high blood pressure, bone loss and, on occasion, type 2 diabetes.

What does low cortisol feel like?

Low levels of cortisol can cause weakness, fatigue, and low blood pressure. You may have more symptoms if you have untreated Addison’s disease or damaged adrenal glands due to severe stress, such as from a car accident or an infection. These symptoms include sudden dizziness, vomiting, and even loss of consciousness.

What are symptoms of low cortisol?

Too little cortisol may be due to a problem in the pituitary gland or the adrenal gland (Addison’s disease). The onset of symptoms is often very gradual. Symptoms may include fatigue, dizziness (especially upon standing), weight loss, muscle weakness, mood changes and the darkening of regions of the skin.

What should cortisol be at 9am?

Optimal Result: 2.68 – 9.3 nmol/L.

What are three symptoms of Cushing’s syndrome?


  • Weight gain and fatty tissue deposits, particularly around the midsection and upper back, in the face (moon face), and between the shoulders (buffalo hump)
  • Pink or purple stretch marks (striae) on the skin of the abdomen, thighs, breasts and arms.
  • Thinning, fragile skin that bruises easily.

What lab values indicate Cushing’s disease?

Values more than 300 μg per day (830 nmol per day) are considered diagnostic for Cushing’s syndrome. 4,5 The reported sensitivity of this test in detecting cortisol excess is 95 percent; the reported specificity is 98 percent.