Sign in →

Test Code FACEC Angiotensin Converting Enzyme, CSF


Specimen Required


Container/Tube: Sterile vial

Specimen Volume: 1 mL

Collection Instructions:

1. Transfer 1 mL of spinal fluid to a sterile vial.

2. Send 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.


Children's Mercy Hospital Note:

CMH COLLECTION: 1 mL in sterile container

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
CSF Frozen (preferred) 180 days
  Refrigerated  7 days

Reject Due To

Hemolysis Reject
Xanthochromic specimens (yellow color) Reject
Specimens containing gadolinium-based contrast agents Reject

Day(s) Performed

Monday, Wednesday, Friday

Report Available

1 to 7 days

Reporting Name

Angiotensin Convert Enzyme CSF

Reference Values

0.0-2.5 U/L

Method Name

Quantitative Spectrophotometry

Performing Laboratory

ARUP Laboratories

CPT Code Information

82164