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HelpTEST ID FACEC Angiotensin Converting Enzyme, CSF
Reporting Name
Angiotensin Convert Enzyme CSFSpecimen Type
CSFSpecimen Required
Specimen Type: Spinal Fluid
Sources: CSF
Container/Tube: Sterile container
Specimen Volume: 1 mL
Collection Instructions:Â Collect 1 mL of spinal fluid (CSF). Ship frozen.
Note: 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.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| CSF | Frozen (preferred) | 180 days | |
| Refrigerated | 7 days |
Method Name
Quantitative Spectrophotometry
Reject Due To
| Hemolysis: | Mild Reject; Gross Reject |
| Thawing: | Cold OK; Warm reject |
| Lipemia: | NA |
| Icterus: | NA |
| Other: | Xanthochromic samples (yellow colour), CSF containing gadolinium-based contrast agents |
Reference Values
0.0-2.5 U/L
Day(s) Performed
Monday, Wednesday, Friday
Report Available
1 to 7 daysPerforming Laboratory
ARUP LaboratoriesCPT Code Information
82164
Useful For
Support diagnosis of neurosarcoidosis. May be used to evaluate treatment response.