Angiotensin Converting Enzyme (ACE), Cerebrospinal Fluid
Use
Quantitative measurement of ACE in CSF. Angiotensin Converting Enzyme (ACE) is used in the assessment of neurosarcoidosis. The major sources of ACE are macrophages and epithelial cells. Patients with sarcoidosis display elevated levels of ACE.
Special Instructions
This test is labeled for research purposes by the assay manufacturer. Results should not be used for treatment or diagnostic purposes without confirmation via another medically established diagnostic method. The assay's performance characteristics are determined by LabCorp.
Limitations
The assay's performance characteristics have not been established by the manufacturer, limiting its use to research purposes only. Results should not be the sole determinant for treatment or diagnostic decisions. Confirmatory tests using established diagnostic procedures are recommended to validate CSF ACE activity.
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
LOINC Codes
- 12480-0
- 12480-0
Result Turnaround Time
4-5 days
Related Documents
For more information, please review the documents below
Specimen
Cerebrospinal Fluid
Volume
0.5 mL
Minimum Volume
0.2 mL
Container
Plastic (CSF) tube
Collection Instructions
Collect CSF by lumbar puncture.
Storage Instructions
Transport frozen.
Causes for Rejection
Hemolysis
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |