New Test
Effective Date
05/19/2026
Included in Report
New Test
Test Details
Mnemonic
EAPSF
Ordering Code
3800498
CPT-4 Codes(s)
86255 X 23, 86341 X 1 plus additional CPT codes and charges if reflexed
Turnaround Time
10 - 14 days
Performed
Monday - Sunday, Reflex tests: Varies
Legacy Code
EAPSF
Example Report
Specimen Information
Patient Preparation
Test is intended for adult patients ages 18 and above.
Collect
Cerebrospinal fluid (CSF)
Specimen Preparation
Send 4.0 mL Cerebrospinal fluid (CSF) in a sterile, screw capped plastic vial. Include relevant clinical information, physician name, phone number, mailing address, and email address.
Minimum Volume
2.0 mL
Transport Temperature
Refrigerated
Rejection Criteria
Gross hemolysis, gross lipemia, gross icterus
Stability
Room temperature: 72 hours
Refrigerated: 28 days
Frozen: 28 days
Refrigerated: 28 days
Frozen: 28 days
Methodology
Immunofluorescence assay (IFA)
Cell-binding assay (CBA)
Western blot (WB)
Radioimmunoassay (RIA)
Immunoblot (IB)
Cell-binding assay (CBA)
Western blot (WB)
Radioimmunoassay (RIA)
Immunoblot (IB)
Reference Range
See report
Performing Laboratory
Mayo Clinic Laboratories
New York DOH Approval Status
Yes