What does a high lab result for the varicella-zoster v ab, IgG mean? Thank you

High titer vs. VZV. This most likely means you have a high titer, or amount of antibody to the varicella zoster virus, probably from a bout of chicken pox.
High IGG VARICELLA. High lab value for varicella IgG antibody titer means that you are immune to varicella or chicken pox. It can be either due to having had natural disease in the past or due to immunisation in the past for varicella.