Hi, I have a question about my HEP B results. I had a test in which I tested positive for the Hep B surface antibody, which is good. I was negative for the HBsAG , negative for the Hep B core antibody, and negative for the Hep B antibody IMG. I don’t remember being vaccinated but must have been I think. The test does not give a number for the Hep B surface antibody but I read online that it should be over 10 for protection.  DOES THIS TEST SHOW POSITIVE FOR ANY NUMBER EVEN IF ITS UNDER 10? Will it be positive if I’m at a one? Would I need a quantitative test to make sure or do they have some kind of range?  Would it show up as negative if I’m at a one?It’s from Medawar Lab. I have a photo but not sure if I can put that in with question. Does surface antibodies provide protection in this case? Are some better than none? Really confusing.  Thanks so much

Welcome to the forum. Thanks for your question.---
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Hi dr. Last question. I also had the Chlamydia/GC Amplification ten days after possible exposure. I have been on an antibiotic for an ear infection, I think amoxicillin. Would this interfere with the test urine test results. Thanks 

If you were taking amoxicillin at the time of exposure, almost certainly it would have prevented either gonorrhea or chlamydia from taking hold, even if you were exposed. In that case, you can consdier the negative tests conclusive. However, if you were exposed and then started amoxicillin a few days later, it is possible the antibiotic would suppress gonorrhea or chlamydia without curing it. In that case, your negative test result may not be reliable. If that's the case, have another urine test a week or so after completing the amoxicillin.---

It was protected vaginal and protected oral from Asian massage parlor. There was also rimming that was not protected. I started the amoxicillin two days after the exposure. Tests were negative at ten days. Today is my last day of ten days of amoxicillin 

Rimming and testicles were not protected with condom from oral sex

That was too low risk an event to have STD testing at all -- or to worry about hepatitis B. (Congtratulations for being so safe -- keep it up in event you have similar experiences in the future. You were not at risk for any STD. That includes the rimming event, which is extremely low risk -- virtually zero risk -- for all STDs. You can rely on your negative test results and don't need any further testing.