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question about testing numbers
Hi Doc,
I had a possible exposure around 5 weeks ago with an escort in u.a.e -- condom broken(8-10 seconds i was inside her) hence withdrew and stopped.
Went to do the test and got my 5 week result and it was negative. I thought i went to do the antibody and antigen test but i guess they did only the antibody test. The number was 0.385 or something.
I asked the doc about antigen, so he called the lab and told them to do p24 test as well(with the same previous day sample). The result came back negative but with the same number 0.385.
My questions
1)Was my exposure risky in the first place
2)What do you have to say about the number not changing when p24 was added into the equation
3)Do you think the test was fine and if so how accurate was the added p24
4)Do you think i should test again ?
Please reply.. Thanks
I had a possible exposure around 5 weeks ago with an escort in u.a.e -- condom broken(8-10 seconds i was inside her) hence withdrew and stopped.
Went to do the test and got my 5 week result and it was negative. I thought i went to do the antibody and antigen test but i guess they did only the antibody test. The number was 0.385 or something.
I asked the doc about antigen, so he called the lab and told them to do p24 test as well(with the same previous day sample). The result came back negative but with the same number 0.385.
My questions
1)Was my exposure risky in the first place
2)What do you have to say about the number not changing when p24 was added into the equation
3)Do you think the test was fine and if so how accurate was the added p24
4)Do you think i should test again ?
Please reply.. Thanks
MEDICAL PROFESSIONAL
Good Morning
The numbers are irrelevant because they are both firmly negative. The lab will simply have added the p24 element to the testing routine so reporting the original antibody score and also subsequently reporting the additional P24.
The antibody score will therefore be the same, the p24 is added.
We do not give antibody scores for precisely this reason - people worry about them because they don't know what they mean. In reality they are either detected or not detected.
You were not detected.
best wishes, Sean
The numbers are irrelevant because they are both firmly negative. The lab will simply have added the p24 element to the testing routine so reporting the original antibody score and also subsequently reporting the additional P24.
The antibody score will therefore be the same, the p24 is added.
We do not give antibody scores for precisely this reason - people worry about them because they don't know what they mean. In reality they are either detected or not detected.
You were not detected.
best wishes, Sean
Doc..
Please let me know about why it is irrelevant.. when the initial result with only antibody and then the 2nd result with the added p24 gave the same exact num.
Please let me know about why it is irrelevant.. when the initial result with only antibody and then the 2nd result with the added p24 gave the same exact num.
Thanks Doc,
I guess my only concern would be that number which kinda is questionable to me.
The result with only antibody and then the result with the added p24 were exactly the same.
If you could please tell me why it is completely irrelevant.
I guess my only concern would be that number which kinda is questionable to me.
The result with only antibody and then the result with the added p24 were exactly the same.
If you could please tell me why it is completely irrelevant.
MEDICAL PROFESSIONAL
Hello
Your questions:-
"
1)Was my exposure risky in the first place
Some but low risk. The chances of you acquring HIV ins such a brief episode are tiny. I do not believe this represents a significant risk.
2)What do you have to say about the number not changing when p24 was added into the equation
Completely irrelevant.
3)Do you think the test was fine and if so how accurate was the added p24
The combination of the two tests - HIV antibody and also p24 antigen is highly accurate at 5 weeks giving you greater than 99.89% at that point
4)Do you think i should test again ?
The UK Guidelines say that people with significant exposures should be offered a fourth generation HIV test - you had one of these effectively - at 4 weeks post exposure and be offered a further test later. I have not experienced, out of the many many thousands of 4th generation tests we do, a negative test at 5 weeks then becoming positive later. My personal feeling is that you do not need to test again."
best regards, Sean
Your questions:-
"
1)Was my exposure risky in the first place
Some but low risk. The chances of you acquring HIV ins such a brief episode are tiny. I do not believe this represents a significant risk.
2)What do you have to say about the number not changing when p24 was added into the equation
Completely irrelevant.
3)Do you think the test was fine and if so how accurate was the added p24
The combination of the two tests - HIV antibody and also p24 antigen is highly accurate at 5 weeks giving you greater than 99.89% at that point
4)Do you think i should test again ?
The UK Guidelines say that people with significant exposures should be offered a fourth generation HIV test - you had one of these effectively - at 4 weeks post exposure and be offered a further test later. I have not experienced, out of the many many thousands of 4th generation tests we do, a negative test at 5 weeks then becoming positive later. My personal feeling is that you do not need to test again."
best regards, Sean
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