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Why Is Western Blot Indeterminate

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western blot indeterminate

In December 2009 I was stuck by a dirty needle at work (the patient was negative for HIV). My initial HIV test was negative, but 3 months later, my HIV test was INDETERMINATE with a reactive p40. I looked up reasons for this, and I came across a...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
...HIV acquisition. It is possible that autoimmune disease can produce nonspecific cross-reacting antibodies that can cause an indeterminate HIV test result.Should you be worried? No.Should you retest? If you had a significant potential occupational... Read more »

Multiple Western Blot "indeterminate" results.

Several weeks ago I had blood samples drawn and suprisinly enough to me, my doctor said the ELA... Read more »


Hi, I'm a male late 30s. I know you've touched on this issue before, but I was hoping to get more... Read more »
U.S. Centers for Disease Control and Prevention

HIV Transmission Through Transfusion -- Missouri and Colorado, 2008

...rapid HIV test (OraSure Technologies, Bethlehem, Pennsylvania) was performed. This test was reactive and confirmed by a positive Western blot at MDHSS. During his interview, the donor reported he was married but had sex with both men and women... Read more »
The Body PRO

Unique, Statewide Program of Acute HIV Testing and Partner Outreach Finds That Many Acute Infections in North Carolina May Stem From Exposure to Chronically Infected Patients

...they're automatically included in a pooling algorithm to test for HIV RNA. Also, people who were antibody positive and have a Western Blot indeterminate test are tested for RNA automatically. Gerald Pierone: When you look at the description of... Read more »
The Center for AIDS

Primary HIV Infection Case Presentations

...obtained. The patient was seen at a clinic 3 months after being discharged from the hospital. At that time, the HIV ELISA and Western Blot were positive. The CD4 cell count was 466 cells/mm 3 (35.3%) and the viral load 9749 copies/mL. A more... Read more »
San Francisco AIDS Foundation

HIV Testing

...become more widely available to other test sites. The detuned test, which is used only after HIV antibodies are confirmed by a Western Blot test , can determine if the HIV infection is recent (within the last six months), which may be useful... Read more »
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indeterminate western blot

Posted by help290
...indeterminate western blot means. In the past three years I had 7 antibody test and 1 pcr all negitive then the doctor gave me a western blot test that came back indeterminate,the very next day I got another antibody test at a free clinic that... Read more »

Indeterminate Western Blot test

Posted by Candi, 1 Reply
...husband approximently six months ago, I got an HIV test done by ELISA and it was positive, then my doctor did not know about the Western Blot test, so I went and had that done and it came back indeterminate. My lab results read as this: Weak... Read more »

Indeterminate western blot

Posted by Anonymous, 1 Reply
...Question - I recently had an indeterminate western blot result. I was told to come back in 6 weeks and test again. What does this mean? Am I infected. I have had heterosexual unprotected Read more »

Indeterminate Western Blot

Posted by Anonymous, 1 Reply
...I had a routine HIV test done two weeks ago. The result was indeterminate. I am not a "high risk" individual. My last sexual contact was vaginal sex, unprotected, about 90 days ago with a good friend Read more »