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Information on HIV tests - Online Doctor Chats

Date : 21-Feb-2012
User rating for this question
Very Good Posted in: HIV and AIDS
Answered by

General & Family Physician
Practicing since : 2009
Answered : 355 Questions
User :   Hello Dr.
Doctor :   hi
User :   I want to know about ECLIA HIV test
User :   Is is as good as ELISA
Doctor :   what do you want to know about the test?
User :   what is the difference and which is better
Doctor :   ELISA Is a more reliable test.
User :   ECLIA is not good?
Doctor :   when was the exposure to HIV? how long back?
User :   86 days
Doctor :   ok, in that case ECLIA will be better to be done
User :   I got this test done p24 antigen + HIV Antibodies by ECLIA
Doctor :   as it picks up the antibodies
Doctor :   what did it read?
User :   negative
Doctor :   ok.
User :   which test is better
User :   ELISA or ECLIA
Doctor :   ELISA is a standard test done to look for the infection, ECLIA is done to look for antibidy response
Doctor :   I would recommend you to get PCR DNA test done
Doctor :   it detects viral DNA multiplication and is the best confirmatory test to test for all subtypes of HIV
User :   ELISA also looks for I correct
Doctor :   yes it does, and the test is reliable after 90 days of exposure
User :   ECLIA is reliable when
Doctor :   ELCIA can be done anytime after 52 days, but it should be backed up with a PCR DNA test
User :   so you mean ECLIA is more sensitive then ELISA
Doctor :   in the early time period it can be considered more sensitive than ELISA
User :   can I relly on my 86 days negative ECLIA
Doctor :   yes, you can rely on it if the PCR DNA also comes back negative.
Doctor :   if teh PCR DNA is negative, then you will not require any further tests to confirm HIV status
Doctor :   *the
User :   I got my PCR DNA done at 52 days and it came as "NOT DETECTED"
Doctor :   then you do not have HIV infection. there was no need to do any further tests after PCR DNA came as not detected
User :   is ECLIA a new technology as compared to ELISA
Doctor :   yes it is a relatively new technology as compared to ELISA, and is not done in all labs
User :   I got it done from SRL Super Religare Lab
Doctor :   which test did you get done at this lab?
User :   ECLIA
User :   as well as PCR DNA
User :   PCR DNA at 52 days and eclia at 86 days
Doctor :   ok
User :   both negative
Doctor :   ok
Doctor :   when was the ECLIA test done? how many days back?
User :   86 days post exposure.............I got my results yesterday
User :   ECLIA is reliable?
Doctor :   your PCR DNA Itself came back as negative at 52 days, so there was no need for any further test
Doctor :   ECLIA being negative only reconfirms that you do not have HIV
User :   I asked the lab to perform ELISA...............instead they did ECLIA
User :   I assumed that ECLIA is better
User :   just want to know is 86 days ECLIA as good as 86 days ELISA
Doctor :   they are different tests detecting different components of the infection. both are good depending on what the doctor wants to detect
User :   for HIV antibodies
User :   which is better
Doctor :   both are good depending on what time they are done post exposure. PCR DNA is better than both of these
User :   at 86 days which is better
Doctor :   as I said PCR DNA is better than both, so at 86 days ECLIA is better since ELISA is reliable after 90 days
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