Understanding IgG blood test results in relation to antibodies

[mcf1971]

I don't know how to interpret the negative blood test results. What does it mean when you get a <.09 igg level?
What is the relationship between antibodies and blood test results?
Does it mean that the person does have antibodies but not enough to have a diagnosis?
Or does it mean the they don't have antibodies at all?
If they do have a 0.9 result, can they be contagious?
Lastly, if a person's blood test shows any antibodies at all, does that mean that they have Herpes or it can be inconclusive?  I thought it was pretty black and white!

BOTTOMLINE:
My ex told me that he had antibodies but that he does not have herpes.
His IgG test was negative.  
How is that possible?  Don't antibodies indicate Herpes for sure?

[feelingundone]

Then he has herpes. That's how it works.

[feelingundone]

Of he tested positive for antibodies then he has hsv. I remember you saying he was exposed but doesn't have hsv.
That result above is just the labs way of saying negative. Some kabs give the actual number (every test has a numeric value). Most just show <.90
Without seeing your ex's test results we can't say for sure what's going on.

[mcf1971]

He said that he was exposed, has antibodies but does not have herpes...

[mcf1971]

Unless he knew his partner had herpes, how wound he know that he was exposed?!?

[mcf1971]

I know I need to move on but still grieving....