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Lab Test Dictionary

Autoimmune Cerebellar Ataxia Panel (90133)


Immunoassay (IA); Immunofluorescence Assay (IFA); Immunoturbidometry; Radiobinding Assay (RBA)

Specimen Type


Performing Lab

Quest Diagnostics San Juan Capistrano

Epic ID

Other Reference Test

Collection Information

Specimen Required

3-6 mL Blood

Container Type

Red Top (No Additive)

Collection Instructions

Overnight fasting is preferred.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room Temp: 48 Hours; Refrigerated: 7 Days; Frozen: 21 Days

Test Volume Required

3 mL Serum

Minimum Test Volume

1.3 mL Serum

Included Tests

Yo Antibody Screen with Reflex to Titer and WB, Voltage Gated Calcium Channel (VGCC) Antibody Assay, Tissue Transglutaminase (tTG) Antibody (IgA) and IgA (Immunoglobulin A). If Yo Antibody Screen, IFA is positive, Yo Antibody, Western Blot will be performed. If Yo Antibody, Western Blot is positive, Yo Antibody, Titer will be performed. If Tissue Transglutaminase (tTG) Antibody (IgA) is positive (>8), Endomysial Antibody Screen (IgA) will be performed. If Endomysial Antibody Screen (IgA) is posi

CPT Codes

82784, 83516, 83519, 86255; 84181; 86256 (x2); 86255; 83516