Hu Autoantibody
Test Mnemonic
ANTIHU
CPT Codes
- 83520 - QTY (1)
Aliases
- Anti HU, Autoantibody
- Anti-Neuronal Nuclear Ab type 1 (ANNA-1)
Includes
- HU Immunoreactivity
Performing Laboratory
Athena Diagnostics
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Serum | No additive (Red) | Refrigerated | Serum must be separated from cells within 48 hours of collection. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Serum | SST (Gold) | Refrigerated | Serum must be separated from cells within 48 hours of collection. | |
| 2 mL | Cerebrospinal fluid (CSF) | Sterile container | Refrigerated | Collect in sterile, leak-proof container. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 72 hours |
| Refrigerated | 28 days |
| Frozen | 28 days |
Days Performed
Mon - Fri
Turnaround Time
4 - 6 days
Methodology
| Name | Description |
|---|---|
| Automated Nanoliter Scale Immunoassay |
Special Info
Serum must be separated from cells within 48 hours of collection.
Clinical Info
Anti-Hu (ANNA1) antibody is found in 5-10% of patients with small cell carcinoma of the lung and is associated with paraneoplastic encephalomyelitis and sensory neuropathy. This semi-quantitative assay may be useful in monitoring therapeutic responses in select cases.