ACTH, Roche Elecsys

Test Code

ACTH

Quest Code

31669

CPT Codes
82024

Preferred Specimen

1.5 mL frozen plasma collected in an EDTA (lavender-top) tube

Minimum Volume

0.5 mL

Other Acceptable Specimens

Frozen plasma collected in: PPT (white-top) tube

Instructions

Collect specimens between 7 am and 10 am. If drawn at any other time, the reference ranges do not apply.

Only use pre-cooled sampling vials. After drawing the blood, put the vials immediately on ice. Use a cooled centrifuge to separate the plasma.

ACTH measurement is not recommended for patients who have been administered cosyntropin [ACTH (1-24)] because the results may be falsely elevated for depressed.

Transport Container

Transport tube

Transport Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Plasma other than EDTA plasma

Methodology
Immunoassay (IA)

Setup Schedule

Tues-sat

Report Available

1-5 days

Reference Range

<18 years	Not established
≥18 years	7.2 - 63.3 pg/mL

Clinical Significance

ACTH determinations are valuable in the differential diagnosis of adrenal insufficiency and hypersecretion.

Performing Laboratory

Quest Diagnostics Nichols Institute-Chantilly VA

14225 Newbrook Drive

Chantilly, VA 20151-2228

Last Updated: January 29, 2025

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.