Sign in →

Test Code LNBAI Lyme Central Nervous System Infection IgG, Antibody Index, Spinal Fluid


Specimen Required


Only orderable as part of a profile. For more information see LNBAB / Lyme Central Nervous System Infection IgG with Antibody Index Reflex, Serum and Spinal Fluid.

 

Both cerebrospinal fluid (CSF) and serum are required for this test. CSF and serum must be collected within 24 hours maximum of each other. CSF specimens with blood contamination will be rejected.

 

Specimen Type: Spinal fluid

Container/Tube: Sterile vial

Specimen Volume: 1.2 mL

Collection Instructions:

1. A spinal fluid (CSF) sample of 1.2 mL needs to be collected within 24 hours of the serum specimen, preferably at the same time.

2. Label vial as spinal fluid or CSF.

3. CSF aliquot should be from the second, third, or fourth CSF vial collected during the lumbar puncture.

Do not submit CSF from the first vial due to the possibility of blood contamination, which will cause specimen rejection.

4. Band specimens together.

 

Specimen Type: Serum

Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1.2 mL

Collection Instructions:

1. A serum sample of 1.2 mL needs to be collected within 24 hours of the spinal fluid specimen, preferably at the same time.

2. Centrifuge and aliquot serum into a plastic vial.

3. Label as serum.

4. Band specimens together.


Useful For

Providing antibody index information to aid in the diagnosis of neuroinvasive Lyme disease or neuroborreliosis due to Borrelia species associated with Lyme disease (eg, Borrelia burgdorferi, Borrelia garinii, Borrelia afzelli)

Method Name

Only orderable as part of a profile. For more information see LNBAB / Lyme Central Nervous System Infection IgG with Antibody Index Reflex, Serum and Spinal Fluid.

 

Enzyme-Linked Immunosorbent Assay (ELISA)

Reporting Name

Lyme CNS Infection IgG, Ab Index

Specimen Type

CSF

Specimen Stability Information

Specimen Type Temperature Time Special Container
CSF Refrigerated (preferred) 11 days
  Frozen  35 days

Reference Values

Only orderable as part of a profile. For more information see LNBAB / Lyme Central Nervous System Infection IgG with Antibody Index Reflex, Serum and Spinal Fluid.

 

0.6-1.2

Day(s) Performed

Monday, Wednesday, Friday

Report Available

Same day/1 to 4 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

86618 x 2

82040

82042

82784 x 2

LOINC Code Information

Test ID Test Order Name Order LOINC Value
LNBAI Lyme CNS Infection IgG, Ab Index 92812-7

 

Result ID Test Result Name Result LOINC Value
LNB3 Lyme CNS IgG Ab Index Value 92811-9
LNB4 Lyme CNS IgG Ab Index Interp 69048-7

Specimen Minimum Volume

See Specimen Required