B-18- What is the basis of HIV test؟
test detect HIV antibodies
an initial test based on the ELISA method,
then a second test using the Western blot procedure
determines the size of the antigens in the
test kit binding to the antibodies.
The combination of these two methods is highly accurate
C-18- When does this test become positive?
- positive ELISA antibody test is in fact infected with HIV
- An ELISA test can be falsely positive for several reasons,
including a patient's autoimmune disease,
multiple pregnancies, blood transfusions,
liver diseases, parental substance abuse,
hemodialysis, or vaccinations for Hepatitis B,
rabies, or influenza.
Any of these conditions can stimulate the immune system
to produce antibodies that cross-react with HIV antigens
and produce a false positive.
- A positive result is confirmed with a second ELISA.
If the second ELISA is positive,
a Western Blot must be done to ensure that
the antibodies detected in the ELISA test are really HIV antibodies.
HIV antibody tests
test detect HIV antibodies
an initial test based on the ELISA method,
then a second test using the Western blot procedure
determines the size of the antigens in the
test kit binding to the antibodies.
The combination of these two methods is highly accurate
C-18- When does this test become positive?
- positive ELISA antibody test is in fact infected with HIV
- An ELISA test can be falsely positive for several reasons,
including a patient's autoimmune disease,
multiple pregnancies, blood transfusions,
liver diseases, parental substance abuse,
hemodialysis, or vaccinations for Hepatitis B,
rabies, or influenza.
Any of these conditions can stimulate the immune system
to produce antibodies that cross-react with HIV antigens
and produce a false positive.
- A positive result is confirmed with a second ELISA.
If the second ELISA is positive,
a Western Blot must be done to ensure that
the antibodies detected in the ELISA test are really HIV antibodies.
HIV antibody tests
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