Acetylcholine Receptor (AChR)-modulating Antibodies, Flow Cytometry
Use
Diagnose myasthenia gravis (MG); monitor response to treatment of myasthenia gravis
Special Instructions
Not provided.
Limitations
In rare cases, AChR antibodies can be found in patients with other autoimmune disorders or with thymoma without Myasthenia Gravis (MG). The causative autoantibody cannot be identified in up to 10% of patients with MG. This test was developed and its performance characteristics determined by Labcorp; it has not been cleared or approved by the Food and Drug Administration.
Methodology
Cell-based / Cytometry (Flow Cytometry)
Biomarkers
LOINC Codes
- 99062-2 - AChR Mod Ab Ser Ql FC
- 99062-2 - AChR Mod Ab Ser Ql FC
Result Turnaround Time
5-7 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.3 mL
Container
Serum from a red-top tube; serum from a gel tube
Storage Instructions
Room temperature
Causes for Rejection
Improper labeling; gross microbial contamination; specimen contaminated with anticoagulants; chyous serum; plasma specimen; excessive hemolysis
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |
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