Test ID APBTC Adaptor Protein 3 Beta2 (AP3B2) Antibody, Tissue Immunofluorescence Titer, Spinal Fluid
Method Name
Only orderable as part of a profile. For more information see:
-MAC1 / Myelopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
-MDC2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
Indirect Immunofluorescence Assay (IFA)
Specimen Required
Only orderable as part of a profile. For more information see:
-MAC1 / Myelopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
-MDC2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
Container/Tube: Sterile vial
Preferred: Vial number 1
Acceptable: Any vial
Specimen Volume: 1.5 mL
Reporting Name
AP3B2 IFA Titer, CSFSpecimen Type
CSFSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| CSF | Refrigerated (preferred) | 28 days |
| Frozen | 28 days | |
| Ambient | 72 hours |
Report Available
5 to 10 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| APBTC | AP3B2 IFA Titer, CSF | 101908-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 616110 | AP3B2 IFA Titer, CSF | 101908-2 |
Useful For
The differential diagnosis of patients presenting with mixed cerebellar and sensory ataxia and myeloneuropathy
Reporting an end titer result from spinal fluid specimens
Testing Algorithm
If the indirect immunofluorescence pattern suggests AP3B2 (adaptor protein 3 beta2), then AP3B2 antibody cell-binding assay (CBA) and this test will be performed at an additional charge.
Day(s) Performed
Monday through Sunday
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
86256
Specimen Minimum Volume
See Specimen Required
Reference Values
Only orderable as part of a profile. For more information see:
-MAC1 / Myelopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
-MDC2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
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