Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
141 Doctors Online

By proceeding, I accept the Terms and Conditions

Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

HCM Blog Instant Access to Doctors
HCM BlogQuestions Answered
HCM Blog Satisfaction

What are the risk of HIV after unprotected intercourse?

Answered by
Dr.
Dr. Deepak Kishore Kaltari

General Surgeon

Practicing since :2002

Answered : 3193 Questions

default
Posted on Tue, 9 Sep 2014 in Sexually Transmitted Diseases
Question: On August 9th I had unprotected sex with someone who I am unsure of his sexual past (if he has stds, hiv, etc). We had sex three times in the one night. This is the second person I have ever slept with and I am freaking out about my dumb mistake to not use a condom in the moment. I know he is in the military, he is straight, and about two months ago he did donate blood (doesn't mean he can't have hiv). He told me he is clean, but I am freaking out about it. Are my chances of contracting hiv high or low? I am going to get tested tomorrow at a clinic that does the send out lab tests, but I am truly a nervous wreck over this whole thing. Should I be worrying over something like this?
doctor
Answered by Dr. Deepak Kishore Kaltari 7 minutes later
Brief Answer:
Less likely to have contracted HIV

Detailed Answer:
Hi
Welcome to Healthcare-Magic
Greetings of the day
Dear Ms,

The chances of you having got infected with HIV is less, almost unlikely. Blood donation 2 months ago does not give a negative HIV status to him. There is a serological window period of 3 months before which serological test done to detect antibodies are negative.
As you are getting tested tomorrow antibody testing will not rule out HIV infection. I would recommend you to get the following investigation
1. P24 antigen asay
2. RT PCR HIV test

Do get back to me if you need any further assistance, will be glad to assist you.

Take Care

Best Regards
Dr Deepak Kishore
MBBS,MS,MCh
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
default
Follow up: Dr. Deepak Kishore Kaltari 25 hours later
I found out that this person was tested a little over a month ago and all of his results were negative. Should I still be worried?

Also they did a 4th generation test on me today when I got tested. Are these reliable?
doctor
Answered by Dr. Deepak Kishore Kaltari 6 hours later
Brief Answer:
Which 4th generation test was done ?

Detailed Answer:
Hi
Dear Ms

It would be very helpful if you could mention which 4th generation test was done for you.
Awaiting your response

Take care
Best regards
Dr Deepak
Above answer was peer-reviewed by : Dr. Bhagyalaxmi Nalaparaju
doctor
default
Follow up: Dr. Deepak Kishore Kaltari 10 hours later
The name of the 4th generation test is HIV1&2 Antibody + HIV1 P24 Antigen Qualitative Immunoassay. I just asked for specifics. At the 11th day would this be effective for results? Or should I go back again on the 25th (which would be the 15th day after possible exposure)?

Do you think my risk is very low after finding out this particular partners test results came back negative a month ago?

Thank you.
doctor
Answered by Dr. Deepak Kishore Kaltari 11 minutes later
Brief Answer:
P24 antigen test is specific test

Detailed Answer:
Dear Ms

As your partner has been tested negative a month ago, chances of having got infection is less.
P24 antigen assay is quite specific and sensitive test. Negative test after 9 days almost certainly rules out HIV infection. HIV 1 and 2 antibody test are not specific..

Take Care

Best Regards
Dr Deepak
Above answer was peer-reviewed by : Dr. Ashwin Bhandari
doctor
premium_optimized

The User accepted the expert's answer

Share on
Question is related to
Diseases and Conditions
Lab Tests ,  
Medical Topics

Recent questions on  Blood donation

doctor1 MD

my husband had blood work done friday they told him his WBC count was down (2000) and his blood platelets were down as well, he also had blood in...

doctor1 MD

injured back Doc states L3 L4 affected took pred back felt better. Approx 2 months later donated 1 Liter of blood first time L arm site 4 days...

doctor1 MD

I had to fast just before giving blood . I gave blood and after doing so I felt fine until about 10 mins later. I suddenly started to sweat...

doctor1 MD

I Have a daughter (14) who has been diagnosed with hemochromotosis and my daughter informed me that the local doctors where she lives are not...

doctor1 MD

Hi there, I had a CBC done at the emergency room about six months ago for stomach pain which they concluded was a possible ulcer or IBS . Since...

doctor1 MD

i was told that I have "thick" blood. I drink a lot of water each day. What could this be and how do I remedy it.

doctor1 MD

60 yr old male. Gave blood yesterday. Today while working on computer I got really dizzy for about 90 sec. M face got hot and sweaty.