What is the Cortisol Random?
Cortisol is a steroid hormone produced by the adrenal gland and it has many roles in metabolism, immunity, and stress management. Cortisol is often called so because of the increase or decrease in its levels during stress. Cortisol is involved in the regulation of blood pressure, blood sugar, and inflammation. It is secreted in a diurnal pattern with high levels in the morning and low levels during the day.
A cortisol random test is conducted to measure the levels of cortisol in the blood at any time of the day. Cortisol imbalance may be associated with several other health conditions and can affect the general health of an individual
How is the Test Performed?
A simple blood draw is performed by the process of venipuncture at any time of the day and then analyzed in the laboratory.
Preparation
- Avoid vigorous exercise before the test
- Avoid the intake of caffeine before the cortisol random test
Laboratory analysis
- The sample is analyzed using the techniques of high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) or immunoassays as they are highly sensitive and accurate.
What are the symptoms that prompt this test?
The healthcare provider warrants a cortisol random test when an individual is exhibiting the signs and symptoms associated with the adrenal gland disorders. The following symptoms are generally seen in these individuals;
Symptoms Associated with High Levels of Cortisol
- Gain of weight especially around the abdomen and the face
- Hypertension i.e. the increase in blood pressure
- Weakness of muscles
- Osteoporosis
- Delayed healing of wounds
- Skin thinning
- Easy bruising
Symptoms Associated with Low Levels of Cortisol
- Extreme fatigue
- Weight loss due to an unknown reason
- Hypotension
- Dizziness
- Skin darkening
- Depression
- Increase in thirst
- Rapid heartbeat
- Urine output reduction
- Salty food craving
What are Normal Ranges for This Test?
The normal levels of cortisol fluctuate throughout the day and its results depend on the time of test;
Morning – 6 to 23 mcg/dL
Afternoon – 3 to 15 mcg/dL
Evening – 1 to 10 mcg/dL
**The values given above are for general guidelines only. It is essential to consult your healthcare provider for the accurate interpretation of the results according to your health condition. **
What Happens if Test Results Show Abnormal Levels?
Cortical abnormalities may be a sign of underlying adrenal disorders for which further evaluation is needed and management is required. Your healthcare provider may suggest other tests, such as an ACTH stimulation test, dexamethasone suppression test, or imaging of the adrenal glands, based on the results.
High Cortisol Levels
- Indicative of Cushing’s Syndrome
- The treatment will depend on the source and can include decreasing the use of steroids, surgical removal of tumors, radiation therapy, or drugs that block the production of cortisol.
Low Cortisol Levels
- Indicative of Addison’s Disease
- The standard Regime of treatment is replacement steroid therapy to achieve the optimal level of cortisol. Patients with Addison’s disease may need to take corticosteroid drugs for the rest of their lives.
Ongoing Monitoring
- Staying active is very important to check on the hormonal levels and change the treatment if needed.
