Autoimmune Myelopathy Profile, Spinal Fluid

TEST: 505409
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CPT: 84182; 86052; 86255(x14); 86341; 86362
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Special Instructions

If reflex test is performed, additional charges/CPT code(s) may apply.

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Specimen Requirements

Specimen

Cerebrospinal fluid (CSF)

Volume

2 mL

Minimum Volume

1 mL (Note: This volume does not allow for repeat testing.)

Container

Sterile screw capped vial

Collection

Do not centrifuge cerebrospinal fluid.

Storage Instructions

Room temperature

Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/thaw cycles

Stable x3

Test Details

Use

This test can assist in the diagnosis (paraneoplastic or idiopathic autoimmune) and aid distinction from other causes of myelopathy (sarcoidosis, vascular disease, multiple sclerosis). Early testing may assist in early diagnosis of occult cancer, prompt initiation of immune therapies, or both.

Limitations

This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.

Methodology

Immunofluorescence (IFA), line blot

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CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf