Blood Tests for Chlamydia

Hi ... I've been tested in the past 18 months for the common STD's via blood and urine.  With respect to chlamydia,  nucleic acid amplification tests were done and I tested negative both times.

Last week, I went to a different doctor, they offered both blood and urine for chlamydia - I did both.  The blood test came back positive and the doctor said the blood test showed antibodies present - the result of the test was 2.079.  The range for a postive result was a value greater than 1.094

The urine portion was an NNA test and just indicated postive.   I did have intercourse with one woman from the time of the last negative chlamydia test.  We used condoms but she wanted to perform oral on me ... yet she did not want oral in return, just fingering.   I should have realized that may be a sign, but I let it go.  Lucky for me as I may have gotten worse

Are blood tests for chlamydia considered accurate ?   I know in this case, both blood and urine were positive, but I never knew a valid blood test existed ?

[Vance2335]

No blood tests are not valid, they only look for antibodies which could be an indication of an older infection.

If you have not medicated I would actually go for another test as oral sex and chlamydia don't really mix that well.

[tallnjgent]

Hi

Thank you for your reply and info.  I do understand your point, that the blood test could indicate a prior infection.  I did also have the urine test at the same time and that was also positive

I did have sex with the woman, we used condoms.  She performed oral on me before I put the condom on.  But she did not want oral.    

I should have mentioned that prior urine tests 6 months ago for chlamydia were negative.

So the fact that this urine chlamydia test was positive, along with the positive blood test, it seems to indicate that it was likely transmitted to me from this incident ?    I know condoms are not 100% guaranteed to prevent STD's, but is chlamydia something that tends to get through them ?  Or just bad luck for me ?


    

[Vance2335]

With a positive urine yes...I am going to discount the blood test.
Either bad luck for you or from oral. Like I said oral and chlamydia don't mix very well but still possible.

Women don't tend to want to walk around with a STD, so just because she didn't want oral is not really a sign of anything. I knew a girl about 15 years ago who said she didn't like receiving oral. So it may be rare but not that something is up.

[tallnjgent]

Thanks for your information.  I did receive four 250mg Azithromycin from the doc and I understand that is the recommended next step

I would like to ask your opinion based on the timeline I will write below

I understand your point about woman not wanting to walk around with an std.   I did tell her I was recently tested at that time and I asked her about her status.  She said she was at her gyno a month before we had decided to be intimate.  She also said she had been tested before being pregnant with her son from a marriage years before.   Kind of vague with her current results so I suggested we both get tested at the same time just to be current.   Her reply was " i dont feel like going on a testing date".  

Now, based on the fact that I tested twice before  I was intimate with her ( urine testing for chlamydia using NAAT ) and both of those tests were negative ...  and she was the only woman I was intimate with from the time of those tests to the time I just tested last week ... and now I test postive for chlamydia using both blood and urine testing ...

Can I say with some degree of certainty that she also has chlamydia ?   We are not seeing each other anymore but I have her phone number and email and will reach out to her.  But if she was put off by even suggesting taking an STD test, I can only imagine her response when I say "i think you have chlamydia".  

But i think the test and timeline do suggest it .... even though we used condoms.   I think my understanding and statements are reasonable, yes ?

[Vance2335]

My guess is that she would have chlamydia, but also know why she would not want to go get tested, kind of an insult to her. She should have a urine test and throat swab.