Detect antibodies for P/Q type and N-type voltage-gated calcium channels. Aid in the evaluation of muscle weakness in the context neuromuscular junction disorder with or without cancer, or the diagnosis of paraneoplastic neurological syndromes.
Immediately following collection, thoroughly mix sample by gently inverting 5 times
Gold serum separator (SST) tube
Refrigerated – 2 weeks (preferred)
Ambient – 48 hours
Frozen – 1 month
Quantitative Radioimmunoassay (RIA)
N-type calcium channel antibody | |
Negative | 0.0 - 69.9 pmol/L |
Indeterminate | 70.0 - 110 pmol/L |
Positive | ≥110.1 pmol/L |
P/Q-type voltage-gated dalcium channel (VGCC) antibody | |
Negative | 0.0 - 24.5 pmol/L |
Indeterminate | 24.6 - 45.6 pmol/L |
Positive | ≥45.7 pmol/L |