Laboratory test guide

Neurofilament Light Chain (NfL), Plasma

Available through Quest Diagnostics

DetailsNeurofilament Light Chain (NfL), Plasma - Neurofilament light (NfL) is an intermediate filament protein found specifically in the neuronal cytoskeleton. It can be released into the extracellular space through axonal degradation, and it has…

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Neurofilament Light Chain (NfL), Plasma

Quest Diagnostics
1 test optionFrom $583.34View tests ↓Close ↑

Neurofilament Light Chain (NfL), Plasma

Quest Diagnostics

Details

Listed markers: Neurofilament Light Chain (NfL), Plasma

Fasting: No

Results should be available in 2 - 5 business days after the sample is collected

Not available in: HI, PR, NJ, NY, RI

Related options may differ in markers and method; confirm with your clinician. Final prices and fees are confirmed before ordering.

SpecimenPlasma
Patient price$583.34
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What this laboratory test evaluates

DetailsNeurofilament Light Chain (NfL), Plasma – Neurofilament light (NfL) is an intermediate filament protein found specifically in the neuronal cytoskeleton. It can be released into the extracellular space through axonal degradation, and it has been shown that varying NfL levels are an indicator of neuroaxonal damage, irrespective of the cause, and can therefore be associated with a variety of neurological diseases such as multiple sclerosis, amyotrophic lateral sclerosis, frontotemporal dementia, or Alzheimer's disease, as well as acute situations such as traumatic brain injury and others. NfL is thus considered a promising biomarker for, disease activity, progression, prognosis, and monitoring effectiveness of therapies. As NfL can be measured in both cerebrospinal fluid (CSF) and blood, it holds great potential for routine clinical use.

What type of sample is required for this test?0.7 mL plasma collected in an EDTA (lavender-top) tube

Test ResourcesFor more information, please consult your healthcare provider.

Additional test information

Neurofilament Light Chain (NfL), Plasma – Neurofilament light (NfL) is an intermediate filament protein found specifically in the neuronal cytoskeleton. It can be released into the extracellular space through axonal degradation, and it has been shown that varying NfL levels are an indicator of neuroaxonal damage, irrespective of the cause, and can therefore be associated with a variety of neurological diseases such as multiple sclerosis, amyotrophic lateral sclerosis, frontotemporal dementia, or Alzheimer's disease, as well as acute situations such as traumatic brain injury and others. NfL is thus considered a promising biomarker for, disease activity, progression, prognosis, and monitoring effectiveness of therapies. As NfL can be measured in both cerebrospinal fluid (CSF) and blood, it holds great potential for routine clinical use.

Collection and processing

  • Sample type: Plasma
  • Fasting: No
  • Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected

How Sunridge uses laboratory information

Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.

Before requesting this test

Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.

Related Sunridge care

Learn how Sunridge approaches Neurologic Conditions and ask whether this test is appropriate for your clinical question.

About this test

DetailsNeurofilament Light Chain (NfL), Plasma - Neurofilament light (NfL) is an intermediate filament protein found specifically in the neuronal cytoskeleton. It can be released into the extracellular space through axonal degradation, and it has been shown that varying NfL levels are an indicator of neuroaxonal damage, irrespective of the cause, and can therefore be associated with a variety of neurological diseases such as multiple sclerosis, amyotrophic lateral sclerosis, frontotemporal dementia, or Alzheimer's disease, as well as acute situations such as traumatic brain injury and others. NfL is thus considered a promising biomarker for, disease activity, progression, prognosis, and monitoring effectiveness of therapies. As NfL can be measured in both cerebrospinal fluid (CSF) and blood, it holds great potential for routine clinical use.

What type of sample is required for this test?0.7 mL plasma collected in an EDTA (lavender-top) tube

Test ResourcesFor more information, please consult your healthcare provider.

Additional details

Neurofilament Light Chain (NfL), Plasma - Neurofilament light (NfL) is an intermediate filament protein found specifically in the neuronal cytoskeleton. It can be released into the extracellular space through axonal degradation, and it has been shown that varying NfL levels are an indicator of neuroaxonal damage, irrespective of the cause, and can therefore be associated with a variety of neurological diseases such as multiple sclerosis, amyotrophic lateral sclerosis, frontotemporal dementia, or Alzheimer's disease, as well as acute situations such as traumatic brain injury and others. NfL is thus considered a promising biomarker for, disease activity, progression, prognosis, and monitoring effectiveness of therapies. As NfL can be measured in both cerebrospinal fluid (CSF) and blood, it holds great potential for routine clinical use.

Highlighted health areas

  • Neurological

Biomarkers and report focus

The exact analytes and report format can change. Confirm the current contents in the Fullscript order before payment.

  • Neurofilament Light Chain (NfL), Plasma

Important laboratory-testing information

This article is educational and does not diagnose a condition, establish medical care, or replace professional advice. Test availability, contents, pricing, eligibility, specimen instructions, and processing estimates can change. Sunridge must review the request and create an appropriate Fullscript order before payment. Follow the current instructions in your Fullscript account and laboratory kit, and discuss urgent or worsening symptoms with an appropriate medical professional.

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