Midwest · Cortisol Levels Blood Test
Cortisol Levels Blood Test in Illinois
Cortisol Levels Blood Test can be ordered without a referral from your own doctor, and this guide covers what to expect. A cortisol levels blood test measures the amount of the hormone cortisol in your bloodstream. It helps clinicians evaluate how your adrenal glands and related regulatory system are working.
Lab requirements in Illinois
Here is what you need before ordering and completing the Cortisol Levels Blood Test in IL. Review each item and confirm the details with the collection lab.
- Physician's order
- Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
- Fasting
- Some tests require fasting or avoiding certain foods or drinks beforehand. You will be informed when you order — confirm the details with the collection lab.
- Preparation
- Preparation instructions can vary depending on the time of collection and the reason for testing, so follow the specific directions provided by the collection laboratory. This may include…
- Sample & visit
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Identification
- Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
- Turnaround
- 1-3 business days
- Availability
- Our partner lab does not serve ND, RI, NY, NJ, MD or HI. Confirm availability for your location with the collection lab.
Before you go
- Order your test before visiting a lab, then use the requisition form in your account.
- Print the requisition form, or fax it to the lab directly from your account.
- No scheduling is needed — visit the collection lab during its normal business hours.
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Bring a government-issued photo ID in case the lab requests it.
- Results are posted to your secure account within 1–3 business days.
Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.
What this test is
Cortisol is a hormone produced by the adrenal glands that helps regulate metabolism, immune response, and the body's reaction to stress. This blood test quantifies the total amount of cortisol circulating in the blood at the time of collection. It is typically used alongside other tests to assess adrenal function.
What it measures
- Cortisol — reflects the amount of this hormone in the blood at the time of collection
What the test involves
The test requires a standard blood draw, usually from a vein in your arm, performed at a collection facility. The sample is then sent to a laboratory for analysis, and results are typically available within a few business days.
Why it is often ordered
A clinician may order a cortisol blood test when symptoms suggest an adrenal gland disorder, such as fatigue, weight changes, or blood pressure abnormalities. It can also be used to monitor conditions or treatments that affect cortisol production.
Preparation
Preparation instructions can vary depending on the time of collection and the reason for testing, so follow the specific directions provided by the collection laboratory. This may include timing the draw to a certain hour or avoiding certain medications beforehand.
How results are reported
Results are reported as a numerical value, often in micrograms per deciliter, and may include a reference range for context. Reference ranges differ between laboratories, so your result should always be interpreted using the range provided by the testing lab.
Before you go
- Whether any medications or supplements should be paused before the test
- The preferred time of day for your blood draw
- Whether fasting or other dietary restrictions are needed
Cities
Cortisol Levels Blood Test in Illinois communities
Choose your city for local context and to order this test.