Test Details
Mnemonic
ECHOA
Ordering Code
3679930
CPT-4 Code(s)
86658 x 5
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Centrifuge, separate serum from cells within 2 hours of collection and send 1.0 mL serum in a screw capped plastic vial.
Alternate Specimen
Red top
Minimum Volume
0.3 mL
Transport Temperature
Refrigerated
Rejection Criteria
Plasma specimens, Cerebrospinal fluid (CSF), hemolyzed or grossly lipemic specimens
Stability
Room temperature: 48 hours
Refrigerated: 14 days
Frozen: 1 year
Refrigerated: 14 days
Frozen: 1 year
Methodology
Serum Neutralization Assay
Reference Range
<1:10
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes