Angiotensin Converting Enzyme, CSF
| Sunquest Code: | ACEC | ||
| Epic Code: | LAB4376 | Epic Name: | Angiotensin Converting Enzyme, CSF |
| Synonyms: | ACE, CSF | ||
| Methodology: | Spectrophotometry | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-5 days. | ||
| Special Instructions: | Gadolinium contrast agents have been reported to inhibit ACE activity Therefore, CSF containing gadolinium-based contrast agents should not be submitted to the laboratory for evaluation. | ||
| Compliance: | This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the U.S. Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes. |
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Collection Instructions
| Specimen: | CSF |
| Optimal Volume: | 1 mL |
| Minimum\Peds Volume: | 0.5 mL |
| Container: | CSF Tubes (Plastic leakproof container, sterile) |
| Causes for Rejection: | CSF containing gadolinium-based contrast agents. Hemolyzed or xanthochromic specimens. |
Processing and Shipping
| Specimen Processing: | Separate from cells within 1 hour of collection if red blood cells are present. Transfer 1 mL; 0.5 mL minimum, into an ARUP transport tube. Store frozen. |
| Shipping Instructions: | Ship on dry ice. |
| Stability: | 4 hours at room temperature; 1 week refrigerated; 6 months frozen. |
| Test Performed at or Referral Lab | Lab Sendouts (ARUP) |
| Referral Lab number: | 98974 |
Interpretive
| Reference Range: | 0.0-2.5 U/L |
| Use: | Support diagnosis of neurosarcoidosis. May be used to evaluate treatment response. |
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