This might be a question best suited to @Jonathan Edwards but maybe others can answer as well.
What does it mean when a person has antibodies to an antigen but they're not high enough to garner a positive or equivocal result?
Examples:
AChR Blocking Abs, Serum
Your value: 15%
Interpretation: Negative: 0 - 25%
Borderline: 26 - 30%
Positive: >30%
GM-1 Ganglioside IgG Antibody
Your value: 8 IV
Interpretation: Negative: <29 IV
Equivocal: 30-50 IV
Positive: 51-100 IV
In both of these examples, the antibodies aren't zero but they're not high enough for a diagnosis either. So why do these antibodies exist? What do they mean?
What does it mean when a person has antibodies to an antigen but they're not high enough to garner a positive or equivocal result?
Examples:
AChR Blocking Abs, Serum
Your value: 15%
Interpretation: Negative: 0 - 25%
Borderline: 26 - 30%
Positive: >30%
GM-1 Ganglioside IgG Antibody
Your value: 8 IV
Interpretation: Negative: <29 IV
Equivocal: 30-50 IV
Positive: 51-100 IV
In both of these examples, the antibodies aren't zero but they're not high enough for a diagnosis either. So why do these antibodies exist? What do they mean?