Specimen Collection Manual and Test Catalog
RI ANTIBODY SCREEN W/REFLEX TO TITER & WB
Geisinger Epic Procedure Code: LAB2748 Geisinger Epic ID: 35843SPECIMEN COLLECTION
Specimen type:
Serum
Preferred collection container:
Alternate collection container:
3.5 mL gold-top (serum separator) tube
Specimen required:
1 mL (minimum 0.3 mL) serum
Patient preparation:
A 12-hour fasting specimen is preferred.
SPECIMEN PROCESSING
Transport temperature:
Room temperature.
Specimen stability:
Room temperature: 7 days. Refrigerated: 14 days. Frozen: 21 days.
Rejection criteria:
Stability limits exceeded.
TEST DETAILS
Reference interval:
CPT code(s):
86255 Ri Ab Screen,IFA Negative Ri Ab,WB Negative Ri Ab,Titer <1:4
Note: The billing party has sole responsibility for CPT coding. Any
questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Methodology:
Indirect Immunofluorescence
Western Blot
Western Blot
Synonyms:
Neuronal Nuclear (Ri) Antibody, Quest test code 10140, RIAB
Clinical significance:
Review Date:
12/03/2024 Anti-Ri can be detected in patients with the paraneoplastic opsoclonus/myoclonus syndrome. Neoplasms most often associated with Anti-Ri include breast cancer, gynecological cancers, and small cell lung cancer.
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