Sister, have you completed Anti HBV vaccine course of 3 vaccines? If not, take single dose of it now. And test for your blood level of Anti HBsAg antibodies. If its more than 10 then you are safe.
One more thing you can do is; do patients HBeAg levels. If its less, then patient is not much infective.
Health Tips
Always take complete universal precautions in known cases.