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HelpTest ID AN3TC Antineuronal Nuclear Antibody Type 3 (ANNA-3) Titer, Spinal Fluid (Non-Orderable)
Ordering Guidance
Both serum and spinal fluid testing are suggested. Spinal fluid testing is particularly useful if interfering antibodies are present in the serum.
Specimen Required
Only orderable as a reflex. For more information see:
DMC2 / Dementia, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
ENC2 / Encephalopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
EPC2 / Epilepsy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
MDC2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
MAC1 / Myelopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
Secondary ID
43442Useful For
Only orderable as a reflex. For more information see:
DMC2 / Dementia, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
ENC2 / Encephalopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
EPC2 / Epilepsy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
MDC2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
MAC1 / Myelopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
Evaluating patients who present with a subacute neurological disorder of undetermined etiology and have risk factors for primary lung carcinoma
Directing a focused search for cancer
Investigating neurological symptoms that appear during, or after, cancer therapy, and are not explainable my metastasis
Reporting an end titer result from cerebrospinal fluid specimens
Testing Algorithm
If the indirect immunofluorescence (IFA) pattern suggests antineuronal nuclear antibody type 3 (ANNA-3), then this test will be performed at an additional charge.
Specimen Type
CSFSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| CSF | Refrigerated (preferred) | 28 days |
| Frozen | 28 days | |
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Reference Values
Only orderable as a reflex. For more information see:
DMC2 / Dementia, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
ENC2 / Encephalopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
EPC2 / Epilepsy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
MDC2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
MAC1 / Myelopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid
<1:2
Day(s) Performed
Monday through Sunday
Report Available
6 to 8 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86256