Ordering Recommendation

Support diagnosis of neurosarcoidosis. May be used to evaluate treatment response.

Mnemonic
ACE CSF
Methodology

Quantitative Spectrophotometry

Performed

Mon, Wed, Fri

Reported

Between 1 and 5 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

CSF.

Specimen Preparation

Separate from cells within 1 hour of collection. Transfer 1 mL CSF to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature

Frozen.

Unacceptable Conditions

CSF containing gadolinium-based contrast agents. Hemolyzed or xanthochromic specimens.

Remarks
Stability

Ambient: 4 hours; Refrigerated: 1 week; Frozen: 6 months

Reference Interval

0.0-2.5 U/L

Interpretive Data



Compliance Category

Laboratory Developed Test (LDT)

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.

Hotline History
N/A
CPT Codes

82164

Components
Component Test Code* Component Chart Name LOINC
0098974 Angiotensin Convert Enzyme CSF 12480-0
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • ACE
Angiotensin Converting Enzyme, CSF