3 - 7 days
Test Updated:
ACh Receptor (Muscle) Binding Antibody
ACh Receptor (Muscle) Modulating Antibody
AChR Ganglionic Neuronal Antibody
CRMP-5 IgG
Striational (Striated Muscle) Antibody
AChR Antibodies
Acetylcholine Receptor Antibodies
GAD65 Antibody
Neuronal (V-G) K Channel Antibody
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Test Overview
Recommended for investigation of: 1) a patient with suspected or proven thymoma, whether or not symptoms or signs of MG are present (also of value for serially monitoring patients after removal of thymoma; a rising autoantibody titer may herald tumor persistence or recurrence), or emergence of an unrelated neoplasm and 2) a bone marrow transplant recipient with suspected graft-vs.-host disease, particularly if there is evidence of weakness.
Muscle AChR Binding Ab: <=0.02 nmol/L; Muscle AChR Modulating Ab: 0 - 20%; Striational Ab: <1:120; CRMP-5-IgG Western Blot: Negative; AChR Ganglionic Neuronal Ab: <=0.02 nmol/L; Glutamic Acid Decarboxylase Ab: <=0.02 nmol/L; Voltage-Gated Potassium Channel Ab: <=0.02 nmol/L.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Specimen Requirements
Collect specimen in a red top or SST tube.
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.
