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 Field Name  Data Description
Test Name  Neuronal Nuclear (Ri) Autoabs
Code  Ri Antibodies.
CPT Code  86255
Last Modified  5/4/2018 12:21:00 PM
Test Name  Ri Ab.
Synonyms  Anna2, Anna-2, ANTI-RI, 55kD, Anti Ri,
Patient Preparation  
Spec. Requirements  Blood
Tube  Gold or Red
Collection Volume  3.5 mL Gold or 4.0 mL Red
Storage  Refrigerated 5 days, Frozen 1 year
Routine TAT  
Days Test Performed  
Performed by BHS  None
See Availability  
Reference Lab  LabCorp of America
Reference Lab Code  808978 Anti-Ri Antibodies
Clinical Use  Antibodies to Ri are associated with paraneoplastic syndromes. The paraneoplastic syndrome associated with presence antibodies to Ri includes symptoms such as opsoclonus, ataxia, nystagmus, dizziness anddysarthria.
Reference Range  
Critical Value  
Testing Sample Type  Serum
Min Lab Testing Volume  0.4 mL
Special Handling  
Lab Notes  Reflexes to Western Blot
Methodology  IFA - Indirect fluorescent antibody

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