Get your Health question answered in 3 easy steps
A Doctor will be with you shortly
Ask a Doctor Now
194 Doctors are Online

Does PCR HIV 2 DNA test detect HIV 2 after 6 weeks of the possible risk?

User rating for this question
Very Good
Answered by

Infectious Diseases Specialist
Practicing since : 2002
Answered : 871 Questions
Hi A pcr hiv 2 dna test detects hiv 2 after 6 weeks of the possible risk? Thanks
Posted Sun, 26 Jan 2014 in HIV and AIDS
Answered by Dr. Roopa Hiremath 1 hour later
Brief Answer: PCR for HIV Detailed Answer: Hi Mr. XXXXXXX Welcome to health care magic. PCR is a test done for viral DNA sequence or HIV RNA. It is the test of choice in the window period which ranges from 3 weeks to 12 weeks. Advantages of PCR include: 1.Highly sensitive – can detect up to 10ng of DNA. 2.Can detect pro viral DNA during window period. 3.Differentiates between HIV1 and 2 infection. This test would be conclusive if done in a reliable laboratory. I hope I have cleared your doubts. Please get back if I can assist you further. Thanks.
Above answer was peer-reviewed by
Follow-up: Does PCR HIV 2 DNA test detect HIV 2 after 6 weeks of the possible risk? 37 minutes later
Thanks a lot I will take the antibody test next week. At the lab they told me that pcr hiv 1 and pcr hiv 2 that i took detect both viruses 28 days after the risk. Can i rely that info? As i mentionated before, has passed 6 weeks after risk
Answered by Dr. Roopa Hiremath 24 minutes later
Brief Answer: HIV testing strategy Detailed Answer: Hi Mr. XXXXXXX Welcome back. PCR is a reliable test which can be done up to 12 weeks (3 months from exposure). After 12 weeks, antibody tests are more reliable. As I mentioned earlier, PCR for HIV 1 and 2 detects both types. HIV testing strategy followed is that at least two consecutive tests done should be negative to declare that person as HIV negative. I hope I have answered your queries, please get back if any more clarifications. Thanks.
Above answer was peer-reviewed by
Share on Facebook
Share on Twitter
Share on Google+
Question is related to
Diseases and Conditions
Lab Tests
Medical Topics

The user accepted the expert's answer

Ask an HIV AIDS Specialist

© Ebix, Inc. All Rights Reserved.
All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice. You should always speak with your doctor before you follow anything that you read on this website. Any health question asked on this site will be visible to the people who browse this site. Hence, the user assumes the responsibility not to divulge any personally identifiable information in the question. Use of this site is subject to our Terms & Conditions
Already Rated.
Your rating:

Ask a Doctor