Casandra
Casandra Test Code QD90478Version 1 (DRAFT)
Performing Lab
RyR Autoantibody Test
Clinical Use
Order TestUse
Detects anti‑RyR (ryanodine receptor) autoantibodies in the sera of patients with Myasthenia Gravis (MG). These striational antibodies, including RyR and titin, are often found in AChR‑negative MG and occur at higher frequency in thymoma‑associated cases, supporting differential diagnosis and aiding clinical interpretation.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Immunoassay (ELISA)
Biomarkers
RyR autoantibody
ProteinRyR Autoantibody • Other • Binary (Detected / Not Detected)
Result Turnaround Time
7-14 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
2 mL
Minimum Volume
0.5 mL
Collection Instructions
Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 72 hours |
| Refrigerated | 28 days |
| Frozen | 28 days |