Test Overview
Test Methodology

Enzyme immunoassay (EIA)

Test Usage

Increased levels of neopterin are found during impaired renal function and viral infection in transplant patients. Elevated levels are also indicators for conditions related to impaired cellular immunity.

Reference Range *

Adults: <2.5 ng/mL

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

Test Details
Days Set Up
Wednesday
Analytic Time

5 - 15 days

Soft Order Code
FNEOS
MiChart Code
FNEOS
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo FNEOS (Labcorp-Burlington)
    Section
    Special Testing
    Specimen Requirements
    Collection

    Collect specimen in an SST or red top tube, and wrap to protect from light. Spin and aliquot into an amber screw capped, PFL tube. Send to Specimen Processing frozen

    Normal Volume
    0.8 mL serum
    Minimum Volume
    0.5 mL serum
    Storage Temperature
    Frozen preferred, refrigerated ok for 72 hours
    Rejection Criteria
    Not protected from light
    Additional Information

    Test sent to Mayo Clinic Laboratories, performed by Labcorp-Burlington

    Billing
    CPT Code
    83520
    Fee Code
    AA629
    NY State Approved
    No