Acetylcholine Receptor Binding Antibody with Reflex to MuSK Antibody


Abbrev Code:XMISC   
Order Code:LAB4909Order 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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