Hiv1 Serology
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Contents |
More Specific Terms
- HIV1 gp120 Ab in serum
- HIV1 gp120+gp160 Ab in serum
- HIV1 gp160 Ab in serum
- HIV1 gp40 Ab in serum
- HIV1 gp41 Ab in serum
- HIV1 IgG Ab in serum
- HIV1 p18 Ab in serum
- HIV1 p24 Ab in serum
- HIV1 p31 Ab in serum
- HIV1 p51 Ab in serum
- HIV1 p55 Ab in serum
- HIV1 p65 Ab in serum
- human immunodeficiency virus-1 (HIV1) western blot
Indications
Methods
- EIA is the most common method for screening individuals & blood products for antibodies to HIV. Antibodies usually appear by week 4-12 of infection, but seronegativity may be prolonged. Additionally, antibodies may diminish as the disease process progresses. Thus a negative EIA does not rule out disease.
- EIA's for HIV are 99+% sensitive for antibody to the virus, but false positives may occur with specimens that are RPR positive or from patients with hemophilia or on dialysis. EIA is generally done in duplicate & duplicate negatives are considered negative. Positive EIA's are confirmed by western blot.
Specimen
- serum, plasma, saliva, CSF, body fluid
More General Terms
Additional Terms
- HIV laboratory testing
- human immunodeficiency virus-1
- human immunodeficiency virus-1 (HIV1) western blot
References
Clinical Guide to Laboratory Tests, 3rd edition, NW Tietz ed, WB Saunders, Philadelphia, 1995
