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Bcortoloneurscnc

Published: August 9, 2026Updated: August 16, 2026

A urine test that measures beta cortolone, a byproduct of cortisol metabolism, to assess adrenal gland function.

Quick summary

{"Measures cortisol breakdown product in urine","Helps evaluate adrenal gland and pituitary function","Used to diagnose conditions like Cushing's syndrome or Addison's disease","Requires a 24-hour urine collection","Results are reported as moles per volume"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
73876-5
Short code
BCORTOL
Synonyms
B-cortolone Ur-sCnc
Category
chemistry
Sample
urine
Container
Sterile, leak-proof urine collection container, preferably a 24-hour collection container with preservative if timed collection is required
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
CPT
82542
Specimen volume
10 mL of random or timed urine specimen; for 24-hour collections, the entire volume must be submitted along with total volume documentation
Stability
Stable for 24 hours at room temperature; up to 7 days refrigerated at 2-8°C; up to 30 days frozen at -20°C or below. Avoid repeated freeze-thaw cycles.
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
72–168 hours
Order
routine

What is this test?

The Beta Cortolone test measures the amount of beta cortolone in your urine. Beta cortolone is a metabolite, meaning it is a byproduct created when your body breaks down cortisol, a hormone produced by the adrenal glands. By measuring this substance in urine, doctors can get valuable information about how well your adrenal glands are working and whether your cortisol levels are normal.

Cortisol is often called the "stress hormone" because it helps your body respond to stress, regulate blood pressure, control blood sugar levels, and manage metabolism. The adrenal glands, located on top of your kidneys, produce cortisol. The pituitary gland in your brain controls how much cortisol your adrenal glands make.

This test requires a 24-hour urine collection. This means you will collect all your urine over a 24-hour period in a special container provided by your healthcare provider. This method gives a more accurate picture of your cortisol levels than a single urine sample because it accounts for normal daily variations in hormone production.

Reference range

Reference ranges vary by laboratory and methodology; consult the performing laboratory's reference interval for interpretation. Beta cortolone is a downstream metabolite of cortisol metabolism.N/A

Specimen: urine

No special preparation is typically required. Patients should follow their usual dietary and medication routines unless otherwise instructed by their healthcare provider. Inform the laboratory of any corticosteroid medications, as these may influence results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Why do I need a 24-hour urine collection instead of a single sample?
Cortisol levels naturally fluctuate throughout the day, usually highest in the morning and lowest at night. A 24-hour collection provides a more complete picture of your body's average cortisol production and breakdown, making the test results more reliable and accurate for diagnosis.
Are there any special instructions before the test?
Your healthcare provider may ask you to avoid certain medications, including corticosteroids, birth control pills, and some antidepressants, as these can affect test results. You should also follow your normal daily routine unless instructed otherwise. Inform your doctor about all medications and supplements you are taking.
What do high beta cortolone levels mean?
Elevated beta cortolone levels may indicate conditions such as Cushing's syndrome, adrenal tumors, or pituitary gland problems that cause excess cortisol production. Your doctor will interpret these results in combination with other tests and your clinical symptoms.
What do low beta cortolone levels mean?
Low beta cortolone levels may suggest adrenal insufficiency (Addison's disease) or pituitary gland dysfunction that leads to insufficient cortisol production. This requires further evaluation by your healthcare provider.
Is the test painful?
The urine collection process is painless and non-invasive. You will collect urine at home using a special container provided by your laboratory or healthcare facility.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy