Different Hiv Test Methods

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HIV Resistance Testing

What Is Resistance? HIV is "resistant" to a drug if it keeps multiplying rapidly while you are taking the drug. Changes (mutations) in the virus cause resistance. HIV mutates almost every time a new copy is made. Not every mutation causes resistance. The "wild type" virus is the most common form of HIV. Anything different from the wild type is considered a mutation. An antiretroviral drug (ARV) won't control a virus that is resistant to it....

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HIV Testing methods

Dear Doctor:Could you explain the different methods/techniques currently used to test HIV infection? and which of the following testing methods are the most accurate tests:1. PGA2. GA3. Western Blot4. ELISAThank you and I look forward to receive...

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine

I have to plead ignorance as to what the acronyms PGA/GA stand for. If you could give me the name, I probably know what it is. On to number 3/4. ELISA stands for enzyme linked immunosorbent assay. Another name is EIA, enzyme immunoassay. This test... Read more »

difference between hep b test and hiv test

I have hepatitus b. I maybe somewhat like a carrier since I have never had any symptoms. My question is what does the hepatitus b testing reveal about other std's and hiv. From the hepatitus b test results alone can you determine if you have...

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine

No, you need a specific HIV blood test to determine whether you have HIV infection.... Read more »

different viral load test methods?

I just got back my latest lab results.. I have a viral load track record of 37,500 > 17,500 > 12,300 and 14,400 from the latest test. However, my lab has started a new "more sensitive" testing method and in addition to the 14,400...

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine

Hmmm... It would be a bit unusual, unless they were completely different methods.... Read more »

Conflicting PCR tests: different primers and different results!

Dr. Holodniy,I know this may not be an easy question, but can you please try to help me? I tested positive twice at a very reputable Lab on an HIV-2 PCR DNA with primers for GAG, but tested negative twice at another very reputable Lab on their HIV-2...

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine

I don't know the answer to that question.... Read more »

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Different Q & A about hiv testing:

Posted by Anonymous, 2 Replies

clarificatoin on testing?
Posted: Apr 2, 2001

is a negative result at 4 1/2 months on a salive test goor/reliable after a low risk exposure(fingering?) thank you

The OraSure testing system is generally thought to be an excellent screening tool and... Read more »

HIV Test Methods

Posted by ME2, 1 Reply

Had about all the symptoms except a fever. I have been tested for HIV four times: at 7 weeks, 14 weeks, 17 weeks, and 27 weeks and each time negative. My concern is the testing method. One test was a rapid test but the other three were Particle... Read more »

Scietific Abstarct on Winodw Period/Test Methods

Posted by Anonymous, 1 Reply

(AIDSLINE) Consistent sequential detection of RNA, antigen and antibody in early HIV infection: assessment of the window period.
Int Conf AIDS. 1996 Jul 7-12;11(1):219 (abstract no. Tu.A.153). Unique Identifier : AIDSLINE MED/96921980
Busch M;... Read more »

Testing methods abd CD4 count question.

Posted by yoshimi2, 1 Reply

I am going to have another test next week. But here in Ireland the only tests available are ag/ab blood analysis. They only do a PCR test if they find a positive result from the initial test. I dont know what to do. I feel so restricted. And I... Read more »

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