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Is ELISA Test Done One Months After Exposure Conclusive?
Posted on
Tue, 27 Oct 2015
Medically reviewed by
Ask A Doctor - 24x7 Medical Review Team
Tue, 27 Oct 2015
Answered on
Tue, 17 Nov 2015
Last reviewed on
Question : Dear Doctor,
i had a slight exposure to risk a few months ago.
i took an ELISA test 50 days after exposure.
but i am worried because i am unsure of the accurate window to wait for this kind of test.
my test said:
HIV I and II AB/AG (ELISA) NONREACTIVE.
i read that new generation tests can be conclusive in 25 days. But i am not sure if my test requires 3 months window.
i had a slight exposure to risk a few months ago.
i took an ELISA test 50 days after exposure.
but i am worried because i am unsure of the accurate window to wait for this kind of test.
my test said:
HIV I and II AB/AG (ELISA) NONREACTIVE.
i read that new generation tests can be conclusive in 25 days. But i am not sure if my test requires 3 months window.
Brief Answer:
Almost considered negative for HIV.
Detailed Answer:
Hi
Thank you for query. I am Dr Bharatesh D Basti answering your query.
Welcome to health care magic. I have gone through the details.
The antibodies to HIV are formed usually by 2-6 weeks, maximum by 12 weeks post exposure.
The antigens are formed at earlier stage but are not very Conclusive. Combo test ( which detects both antigen and antibody) is considered almost conclusive by 1 month .
The chances of HIV tests becoming positive later is almost nil.
It is better to go for Elisa for HIV, again after 12 weeks or 3 months to be relieved of anxiety .
You can get back for any clarification.
Thank you
Dr Bharatesh D Basti
Dermatologist and venereolgist
Almost considered negative for HIV.
Detailed Answer:
Hi
Thank you for query. I am Dr Bharatesh D Basti answering your query.
Welcome to health care magic. I have gone through the details.
The antibodies to HIV are formed usually by 2-6 weeks, maximum by 12 weeks post exposure.
The antigens are formed at earlier stage but are not very Conclusive. Combo test ( which detects both antigen and antibody) is considered almost conclusive by 1 month .
The chances of HIV tests becoming positive later is almost nil.
It is better to go for Elisa for HIV, again after 12 weeks or 3 months to be relieved of anxiety .
You can get back for any clarification.
Thank you
Dr Bharatesh D Basti
Dermatologist and venereolgist
Above answer was peer-reviewed by :
Dr. Sonia Raina
Dear Doctor Bharatesh,
Thank you for your patience and detailed answer.
Is the ELISA ab/ag same as a combo test?
or is a combo test a different test?
Thank you
Thank you for your patience and detailed answer.
Is the ELISA ab/ag same as a combo test?
or is a combo test a different test?
Thank you
Brief Answer:
Elisa 4th generation is same as combo test.
Detailed Answer:
Hi
Thank you for follow up query.
Yes.Elisa 4th generation is same as combo test.It detects both antigen and antibodies.
You can get back for any clarification.
Thank you
Dr Bharatesh D Basti
Elisa 4th generation is same as combo test.
Detailed Answer:
Hi
Thank you for follow up query.
Yes.Elisa 4th generation is same as combo test.It detects both antigen and antibodies.
You can get back for any clarification.
Thank you
Dr Bharatesh D Basti
Above answer was peer-reviewed by :
Dr. Sonia Raina
Thank You Doctor,
How do i know if my test is third generation or 4th generation ELISA?
How do i know if my test is third generation or 4th generation ELISA?
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