Days Set Up
Tuesday, Friday
Analytic Time

8 hours

MiChart Code
ACTH (Adrenocorticotropic Hormone)
Soft Order Code

Test Updated:


Adrenal Corticotropin
Plasma ACTH
ACTH, Peripheral

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

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Test Overview

Test Methodology

Chemiluminescence Assay

Test Usage

Knowledge of ACTH levels in addition to serum cortisol and urinary free cortisol is useful in the differential diagnosis of Cushing's syndrome, ectopic ACTH syndrome (e.g., carcinoma of lung, islet cell tumors, carcinoid tumors, medullary carcinoma of thyroid), Addison's disease by hypopituitarism and ACTH-producing pituitary tumors (e.g., Nelson's syndrome).

Reference Range

5 - 52 pg/mL

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Onsite

Draw time must be recorded on the specimen label or laboratory slip. Specimen must be drawn in chilled lavender top tube and placed into a container of ice immediately. Deliver specimen to laboratory, or centrifuge immediately, aliquot plasma and freeze within 1 hour of collection.

Collection Offsite

Collect specimen in a chilled lavender top tube. Deliver to laboratory on ice within in 30 minutes or centrifuge immediately, aliquot plasma into plastic vial, freeze within 1 hour of collection, and transport frozen on dry ice.

Normal Volume
1 mL plasma
Minimum Volume
0.5 mL plasma

Billing Information

CPT Code
Pro Fee Code

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.