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HelpTest Code 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 |
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 LaboratoriesTest Classification
This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.CPT Code Information
82164
Method Name
Quantitative Spectrophotometry
Useful For
Support diagnosis of neurosarcoidosis. May be used to evaluate treatment response.