what does "p24 antigen 0.206 with referbn" indicate? - Online Doctor Chats
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Hi Doctor I had sexual intercourse with a professional woman two months ago and used the condom. Before that around three months I had unprotected oral sex.
I got tested yesterday and got the following results
please tell me the result
2) p24 antigen 0.206 with referbn
reference values negative below 0.9 and positive above 1.0 COI
your test result is negative for HIV 1 and 2
I read a bit about these. What is the differnece between a lower level for p24 antigen and higher but below 0.9?
I mean could it be that my p24 level was higher but then dropped to 0.2 after two months. I read that p24 is more effective when done much earlier?
There is no difference as such
It is not possible this way that the level was higher and has dropped now
Once the P24 is positive, it tends to raise rather than decreasing
Compared to the other standard tests, P24 is more effective
thank you but what does the level exactly mean? why have two different not infected persons different levels of this antigen
P24 is the core antigen
The levels can vary depending on the stage
the period of infection
the method of testing
as long as the level is below the reference, the test is considered negative
It can vary in the same person when done at different times, and at different labs
why have different people who are not infected different levels of this antigen
isn't it that this vore antigen is either not present and has value of 0 or is there?
Ideally it should be 0
However, the test per se would not detect 0 p24 antigen
I don't understand then any level above 0 means a little infection?
a level of 0 means no infection
and any level above 0 means a little infection?
it depends on different tests that is used to estimate P24 level
it is not like
For any test value above 0, it means a possibility of the infection that requires repeat testing
so should I do the test again?
it is kind of a neutralization procedure
using a minimum of 5 controls
If your test is positive with these 5 controls, then repeat testing would be recommended
If your test is negative, you do not need to repeat the test
but you said: "For any test value above 0, it means a possibility of the infection that requires repeat testing"
Yes, you can repeat the test in 3 months again
after 3 months of this P24 test date
are you getting me?
I don't understand: you said 1) "If your test is negative, you do not need to repeat the test" and then 2) Yes, you can repeat the test in 3 months again
let me explain it to you again
May I know your age?
What was the date of your last exposure?
two months ago
What was the date of your P24 test?
the date of unprotected sexual intercourse?
three months ago unprotected oral sex
For any test, there would be the particular labs reference range
Could you mail me the report?
yes, I can mail you the report
p24 antigen 0.206 this is your report
its says p24 antigen 0.206
and the reference values are negative 0.9 COI
border case between 0.9 and 1.0
and positive above 1.0 COI
your test is definitely negative
that is what I was saying, when the test is being done, we use controls as well
and HIV (1 and 2) negative
according to your P24 test, your value was 0.206 compared to the control value of 0.9
This means your blood tested negative for P24
If it were to be positive, it should have been well above 0.9
I'm really sorry to bother you but I still dont understand your earlier remark that "For any test value above 0, it means a possibility of the infection that requires repeat testing"
mine is above 0 it is 0.2
The other two test HIV 1 and 2 are routine tests,
See, the reference range for your test is 0.9
your test value is 0.2
Although this test report is negative, there can still be remote possibility of infection to be there
Hence, it is recommended to repeat the test again now, and also to repeat the test after 3 months to be sure of the absence of disease
Are you getting me now
To allay your doubts, there is no harm in repeating the same P24 test
I did the test just yesterday?
Even if you get the same result of 0.2,it is better to repeat the test after 3 months
Yes that is right
If you are worried about the test being faulty, you can repeat it again now
else, wait for 3 months and repeat
Just to make sure I get it:
are you there
is there a difference bewteen a 0.2 and 0 in terms of being infected when the refernce value is 0.9?
there is no difference
both 0 and 0.2 would mean the same
is it clear now?
meaning no infection
hope you are getting it now
only value more than 0.9 suggests presence of infection
but you said "For any test value above 0, it means a possibility of the infection that requires repeat testing" did you say that because you didnt know the reference value and assumed it was 0?
there can be a remote possibility
no test is 100% sure in diagnosing HIV
Are you anxious to repeat the test again?
If in doubt, you can go ahead and repeat it
yes I understand but what gets me confused is the 0.2 value
It is possible to get this value based on the reference or controls that was used
However, by all means your test is negative both for HIV1 and 2
and your remark thyat a level of 0 means no infection
0 means no infection as well
3 months is a very long time to wait and a repeat test with thank you do you think I can can have sex without condoms with my wife and have a normal live wth my child
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