Test Details

Mnemonic

YO

Ordering Code

3428500

CPT-4 Code(s)

83520

Specimen Information

Collect

Red top

Specimen Preparation

Centrifuge, separate serum from cells and send 2.0 mL serum in a screw capped plastic vial.

Alternate Specimen

Serum: Serum separator tube (SST)
Cerebrospinal fluid (CSF)

Minimum Volume

0.5 mL

Transport Temperature

Refrigerated

Stability

Room temperature: 72 hours
Refrigerated: 28 days
Frozen: 28 days

Methodology

Automated Nanoliter Scale Immunoassay
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Reference Range

Serum: <1:200
CSF: <1:1
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Performing Laboratory

Quest SJC
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