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    What does the following blood test report indicate?

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Posted on Wed, 9 Aug 2017 in Medicines and Side Effects
Question: My daughter, as part of entering nursing school 2 years ago, was vaccinated against Hep B. Her Hep B Titer confirmed immunity at that time and there were no indications she ever had Hep B. A few weeks ago upon giving blood she received a letter that stated she was REACTIVE Anti-HBc (non-reactive for HBsAg and HBV NAT). How can this be the case if she was vaccinated two years ago?
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Answered by Dr. Monika Dede 1 hour later
Brief Answer:
This could be a false positive result.

Detailed Answer:
Hello,
Thank you writing back.


If your daughter was vaccinated for hep B and had after this anti HBs positive (confirmed immunity for hep B) and anti HBc negative I think that she should retested again for anti-HBc because could happen to be a false positive result.

I hope my answer helps you.
Regards.
Above answer was peer-reviewed by : Dr. Vaishalee Punj
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Answered by
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Dr. Monika Dede

Infectious Diseases Specialist

Practicing since :2003

Answered : 940 Questions

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