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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Is It Likely To Have Wrong Results For Test Done Two Days After Vaccination?

I took the first of the three shot series of TwinRix vaccinations and two days later was tested in a clinic for Hep. B. I was just told my test was positive. I told the doctor before the Hep.B. test that I was just vaccinated two days earlier. She said it was "no problem." I've read that testing so close (only two days) from the time of the vaccination can lead to "false positive results." Is this likely?
Mon, 11 Aug 2014
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General & Family Physician,  's  Response
Hi, thanks for using healthcare magic

There are specific markers in the blood that are used to determine whether a person has hep b, had a previous infection or received any immunizations.

This is because there are different types of proteins related to the hepatitis virus that can be detected to determine which of these (previous infection, present infection, immunization) is going on in the individual.

Your doctor would have looked for one of these specific proteins.

I hope this helps
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Is It Likely To Have Wrong Results For Test Done Two Days After Vaccination?

Hi, thanks for using healthcare magic There are specific markers in the blood that are used to determine whether a person has hep b, had a previous infection or received any immunizations. This is because there are different types of proteins related to the hepatitis virus that can be detected to determine which of these (previous infection, present infection, immunization) is going on in the individual. Your doctor would have looked for one of these specific proteins. I hope this helps