Update Type: Test Code Change
Test Updated: 02/18/2026
Test Overview
Test Methodology

Quantitative Multiplex Bead Assay

Reference Range *

Interleukin 2 Receptor, Soluble, CSF 26.8 pg/mL or less; Interleukin 12, CSF 1.9 pg/mL or less; Interferon gamma, CSF 4.2 pg/mL or less; Interleukin 4, CSF 5.2 pg/mL or less; Interleukin 10, CSF 12.7 pg/mL or less; Interleukin 13, CSF 7.3 pg/mL or less; Interleukin 1 beta, CSF 6.5 pg/mL or less; Interleukin 6, CSF 7.5 pg/mL or less; Interleukin 8, CSF 4.6 - 283.5 pg/mL; Tumor Necrosis Factor - alpha, CSF 1.7 pg/mL or less; Interleukin 2, CSF 2.1 pg/mL or less; Interleukin 17, CSF 4.6 pg/mL or less

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Sunday - Saturday
Soft Order Code
ACYKC
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    ARUP # 3003259
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

    Collect CSF in a sterile tube. If it is a screw capped tube, wrap top with parafilm and send to Specimen Processing frozen. If not a screw capped tube, it must be transferred to a screw capped tube and sent.

    Special Handling

    STRICT FROZEN

    Normal Volume

    1 mL CSF

    Minimum Volume

    0.4 mL CSF

    Storage Temperature
    STRICT FROZEN
    Rejection Criteria
    Refrigerated specimens. Contaminated or heat inactivated specimens
    Additional Information

    Test performed by ARUP LAboratories

    Billing
    CPT Code
    83520 x12, 83529
    Fee Code
    AA493 x12, AB005
    NY State Approved
    No