ACTH Test in Colorado — Request Locally

An ACTH test measures the amount of adrenocorticotropic hormone in your blood. This hormone, made by the pituitary gland, tells your adrenal glands to produce cortisol. The test helps evaluate conditions like adrenal insufficiency, Cushing's syndrome, or pituitary disorders.

What it measures

ACTH — The level of adrenocorticotropic hormone in your blood.
Cortisol (often paired) — A hormone from the adrenal glands that ACTH controls; sometimes checked at the same time.

Who it is for

Doctors order this test when they suspect a hormone imbalance, such as too much or too little cortisol, or to monitor a known pituitary or adrenal condition.

Preparation

Your doctor may ask you to fast overnight or to have the test at a specific time, often in the early morning. Sometimes no special preparation is needed.

Results and what they mean

Results are reported as a number with a reference range. Your clinician will interpret the result along with your symptoms and other tests. This is general information, not medical advice; only your healthcare provider can diagnose or treat any condition.

Requesting the ACTH Test in Colorado

Order online, choose a certified collection site in Colorado, and review results through a secure portal. No referral is required, and orders are processed confidentially. Access across Mountain West is open, so confirming a site ahead of time is worthwhile.

Frequently asked questions

What does an abnormal ACTH level mean?

It can suggest a problem with your pituitary or adrenal glands, but it must be interpreted with other tests and your symptoms.

Does the test require fasting?

Sometimes. Follow your doctor's instructions, as fasting or timing may affect the result.

How long until I get results?

Typically 1–3 business days, but this can vary by lab.

Is this test painful?

It uses a standard blood draw, which may cause brief discomfort.

ACTH Test by city in Colorado

All testing in Colorado → Full ACTH Test guide →