Acetylcholine Receptor Binding Antibody with Reflex to MuSK Antibody
| Abbrev Code: | XMISC | ||
| Order Code: | LAB4909 | Order Name: | Send Outs Misc Test |
| Methodology: | Radioimmunoassay | ||
| CPT Codes: | 83519 x1 | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Fri; results are reported within 7-14 days. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 4 mL |
| Minimum\Peds Volume: | 1.2 mL |
| Container: | Red (no gel) Alternate Containers: Red or gold (gel) |
Processing and Shipping
| Specimen Processing: | Within 1 hour of collection, centrifuge and aliquot 2 mL, 0.5 mL minimum. Store refrigerated. |
| Shipping Instructions: | Ship refrigerated. |
| Stability: | Samples are stable at room temperature for 3 days; refrigerated 14 days; 30 days frozen |
| Test Performed at or Referral Lab | Lab Sendouts (Athena Diagnostics) |
| Referral Lab number: | 1510 |
Interpretive
| Reference Range: |
By report.
If the Acetylcholine Receptor Binding Antibody is negative then the MuSK Antibody Test will be performed at additional charge. |
| Use: | Anti-acetylcholine receptor binding antibodies (anti-AChR) are associated with Myasthenia Gravis (MG) and are found in approximately 85% of MG patients. Approximately 8% to 10% of all MG cases and 20% of generalized MG cases who lack anti-AChR antibodies have autoantibodies against muscle-specific kinase (anti-MuSK). |
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