ACTH, Roche Elecsys
Use
ACTH determinations are valuable in the differential diagnosis of adrenal insufficiency and hypersecretion.
Special Instructions
This test is being offered for those clients who have a preference for the Roche Elecsys method over the Siemens Immulite and who are looking to confirm elevated ACTH results obtained by the Siemens Immulite.
Limitations
ACTH measurement is not recommended for patients who have been administered cosyntropin [ACTH (1-24)] because the results may be falsely elevated or depressed.
Methodology
Immunoassay
Biomarkers
LOINC Codes
- 2141-0
- 2141-0
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Plasma
Volume
1.5 mL
Minimum Volume
0.5 mL
Container
EDTA (lavender-top) tube
Collection Instructions
Collect specimens between 7am and 10am. If drawn at any other time, the reference ranges do not apply. Use pre-cooled sampling vials; put vials immediately on ice after drawing blood; use a cooled centrifuge to separate the plasma.
Causes for Rejection
Plasma other than EDTA plasma
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | Unacceptable |
| Frozen | 30 days |