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  • Ferritin
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Biomarkers · Chemical

Neurofilament Light Chain

Primary unit
pg/mL
LOINC codes
101281-4
Tests that measure Neurofilament Light Chain
Labcorp 4, Quest Diagnostics 1

Ranges

Each lab publishes a reference range for the population groups it tests, usually the middle 95% of results. These intervals describe that population, not an optimal or healthy target. How ranges differ

Labcorp, Neurofilament Light Chain, Serum 140455

PopulationInterval
>79 y0.00–9.13
70 to 79 y0.00–6.04
60 to 69 y0.00–3.65
50 to 59 y0.00–2.99
40 to 49 y0.00–1.69
30 to 39 y0.00–1.49
20 to 29 y0.00–1.30
15 to 19 y0.00–1.26
10 to 14 y0.00–1.13
5 to 9 y0.00–1.30
0 to 4 y0.00–1.56
Age (y)(pg/mL)

Labcorp test catalog, 140455

Labcorp, Neurofilament Light Chain, Plasma 140555

PopulationInterval
50 to 59 y0.00–2.99
>79 y0.00–9.13
70 to 79 y0.00–6.04
60 to 69 y0.00–3.65
40 to 49 y0.00–1.69
30 to 39 y0.00–1.49
20 to 29 y0.00–1.30
15 to 19 y0.00–1.26
10 to 14 y0.00–1.13
5 to 9 y0.00–1.30
0 to 4 y0.00–1.56
Age (y)(pg/mL)

Labcorp test catalog, 140555

Quest Diagnostics, Neurofilament Light Chain (NfL) 13979

PopulationInterval
<20 yearsNot established
≥80 years<7.05 pg/mL
70-79 years<5.27 pg/mL
60-69 years<3.86 pg/mL
50-59 years<2.21 pg/mL
40-49 years<2.34 pg/mL
30-39 years<1.29 pg/mL
20-29 years<1.17 pg/mL

Quest Diagnostics test catalog, 13979

Tests

Check the catalog code, specimen, method and preparation for every test that measures Neurofilament Light Chain. Select up to five tests to compare them side by side.

Labcorp 4 tests

Single-analyte tests

  • Neurofilament Light Chain, Plasma 140555

    Plasma · Fasting not stated · Turnaround 1 - 3 days

    Method and collection
    Method
    Roche Diagnostics Electrochemiluminescence Immunoassay (ECLIA)
    Collection
    Separate plasma and transfer specimen to a plastic transport tube.
    Labcorp catalog page

  • Neurofilament Light Chain, Serum 140455

    Serum · Fasting not stated · Turnaround 1 - 3 days

    Method and collection
    Method
    Roche Diagnostics Electrochemiluminescence Immunoassay (ECLIA)
    Collection
    If a red-top tube is used, transfer separated serum to a plastic transport tube.
    Labcorp catalog page

Panels that include this biomarker

  • Multiple Sclerosis Monitoring Profile 484495

    2 analytes · Serum · Fasting not stated · Turnaround 1 - 3 days

    Method and collection
    Method
    Roche Diagnostics Electrochemiluminescence Immunoassay (ECLIA)
    Collection
    If a red-top tube is used, transfer separated serum to a plastic transport tube.
    Labcorp catalog page

  • ATN Profile 484400

    4 analytes · Plasma · Fasting not stated · Turnaround 7 - 10 days

    Method and collection
    Method
    Sysmex chemiluminescence enzyme immunoassay (CLEIA) and Roche Diagnostics electrochemiluminescence immunoassay (ECLIA)
    Collection
    Draw two full lavender-top (EDTA) tubes of blood. Separate plasma from blood via centrifugation (>1500g for 10 minutes) within 40 minutes after blood collection. Transfer plasma to two Labcorp polypropylene transport tubes and seal.
    Labcorp catalog page

Quest Diagnostics 1 test

Single-analyte tests

  • Neurofilament Light Chain (NfL) 13979

    Plasma · Fasting not stated · Turnaround Set up: Mon, Wed-Sat

    Method and collection
    Method
    Immunoassay (IA)
    Preparation
    Patients should be cautioned to stop biotin consumption at least 72 hours prior to collection of a sample
    Collection
    Draw blood in an EDTA (lavender-top) tube. Invert to mix with preservatives. Centrifuge and transfer plasma to a labeled plastic transport tube.
    Quest Diagnostics catalog page

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Sources

Check the guidelines, studies and lab catalogs behind every range and link on this page. Open a source to see each claim it backs.

Lab catalogs

Codes and registries

Verify these ranges and sources

We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.

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