HIV Flashcards
is a virus that attacks the immune system, the body’s natural defense system. Without a strong immune system, the body has trouble fighting off disease. Both the virus and the infection it causes are called HIV.
Human Immunodeficiency Virus
HIV attacks the body’s immune system, specifically the_______ which help the immune system
fight off infections.
If left untreated, HIV reduces the number of CD4 cells (T cells) in the body, making the person more likely to get infections or infection-related cancers. Over time, HIV can destroy so many of these cells that the body can’t fight off infections and disease.
CD4 cells (T cells),
Hiv is a_____. It belongs to_____, which is sometimes called “slow virus”. The time between infection and the appearance of symptoms tends to be longer, allowing more
Retrovirus. , lentivirus
early symptoms (weeks )
2 to 3 weeks.
MODE OF TRANSMISSION
) Sexual intercourse
2) Blood transfusion and sharing of infected syringes
Transmission during pregnancy - may be transplacental
5) Organ donation
6) Accidental exposure in hospitals or clinics
It may be up to______ before you’ll see a positive result, which means an early test could be negative even though you’re infected.
6 months
These tests check for a kind of protein that your body makes in response to the HIV infection, 2-8 weeks later.
Antibody Screening Tests
Antibody screening tests AKA as..
They’re also called immunoassay or ELISA tests.
The CDC recommends these blood tests. They can detect HIV as soon as 20 days earlier than antibody screening tests. They check for HIV antigen, a protein called p24 that’s part of the virus that shows up 2-4 weeks after infection, as well as HIV antibodies.
A rapid antibody/antigen test can give you results in 20 minutes.
Antibody/Antigen Combination Tests
This looks for the virus itself and can diagnose HIV about 10 days after you’ve been exposed. It’s expensive, though, so it’s usually not the first test. But if you’re at high risk and you have flu-like symptoms, your doctor may want to use it.
RNA Test
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