that means u hv a strong antibody against hep b and u cannot b infected by it. thanks hope that help.
Test Name In Range Out of Range Reference Range
Hepatitis B surface Ab,
Quantitative
Hepatitis B Surface Ab >1000 H see below mIU/mL
>=10 mIU/mL = Patient has immunity to Hep B virus
1000 H is under the out of range column