Angiotensin Converting Enzyme, CSF ACEC
| Method(s) | Quantitative Spectrophotometry |
|---|---|
| Specimen Required | |
| Collect | Cerebrospinal Fluid (CSF). |
| Transport | Separate from cells within 1 hour of collection. Transfer 1 mL CSF, frozen. (Min: 0.5 mL) |
| Stability | (collection to initiation of testing): Ambient: 4 hours; Refrigerated: 1 week; Frozen: 6 months |
| Unacceptable Conditions | Hemolyzed or xanthochromic specimens, CSF containing gadolinium-based contrast agents |
| Schedule | Mon, Wed, Fri |
| Billing Code | 5010203 |
| CPTCode | 82164 |
| Notes | 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. |
| Reference Interval | |
|
0.0-2.5 U/L |
|