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Getting infected by HIV by a file poking in fingers doing root canal - Online Doctor Chats

Date : 21-Feb-2012
User rating for this question
Very Good Posted in: Sexually Transmitted Diseases
Answered by

General & Family Physician
Practicing since : 2005
Answered : 2585 Questions
User :   My husband is a dental student and while doing a root canal he pocked his finger with a file. He immediatly washed the site and had to squeeze very hard for one drop of blood to come out. The patient was tested negative for HIV, Hep C, B. My husband discontinued his antiretrovirals after he tested negative 2 weeks later. My husband and I were planning to start trying for children this month but we are now both nervous about the slight chance that the test was a false negative or the source patient was maybe infected within the three month period where antibodies are not detected. My husband is scheduled for his 6 week retest in two weeks. What advice do you have for us ? What are the chances did he actually might be infected ? I know it is 0.3% is source is +. Can we have unprotected sex ? or should we wait until his 6 month retest ?
Doctor :   Hi
Doctor :   Let me read the query.
User :   what are your credentials ?
Doctor :   I am a general practitioner.
User :   family practice or internist
Doctor :   Family practice.
Doctor :   Let me guide you.
User :   ok go ahead
Doctor :   There are chances of false negativity with the most commonly used HIV tests(that is the antibody test), however there is one test, the DNA PCR tests,
Doctor :   this one has very less rates of false negativity reports, which is almost nil.
Doctor :   As they can give more false positivity than compared to other tests, they are not routinely used unless specified for diagnosing the HIV infections.
Doctor :   So the options right now are.
Doctor :   1. You may get this test and be confirmed if they are negative, then there is almost very minimal or nil chances that he is infected
Doctor :   2. Wait for the 3 rd months when the window period gets over, reconfirm the test (antibody test - elisa) and go ahead with planning for pregnancy.
Doctor :   3. Lastly, antiviral usage during sexual intercourse,
Doctor :   They prevent the chances of transmission of infections to the new born and to some extent to the partners.
Doctor :   Since I cannot suggest you the antiviral medications online as its not ethical, I suggest you the previous two methods.
Doctor :   Have you followed what I have suggested/
User :   where can he get the PCR test ?
Doctor :   HIV DNA PCR test are commonly done in most of the well recognised labs.
Doctor :   They are also done in most of the reputed hospital labs.
User :   What are the chances that he might be infected considering the source tested negative and he is still taking truvada , but skipped 3 doses
Doctor :   The rate of transmission is very low, if the instrument through which he injured did not have any blood spots in it.
Doctor :   The chances of infections are proportional to the amount of blood in the instruments, the depth of the wound and presence of blood following the injury.
Doctor :   Since I do not have these details, I cannot be specific on answering this question.
Doctor :   Do you have any other query?
User :   I think the PCR test might be our best bet , if it is negative we can start trying for pregnancy since my ovulation will be this coming Wednesday. I believe they have same day testing
Doctor :   They will be able to give the results the same day and if not in 24 hours time.
User :   Is this good site WWW.WWWW.WW
Doctor :   I haven't tried this earlier.
Doctor :   Let me check it, if you want to?
Doctor :   Are you there?
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