A 28-year-old woman has been investigated for HIV; her screening test (HIV enzyme linked immunoassay) is positive. Which of the following is the most appropriate test to confirm the diagnosis of HIV?
سؤال مجاني 7 من 10 اليوم · اشترك وكمّل بدون حد
اعرض الإجابة
الإجابة والشرح
ادخل لحسابك عشان نحفظ إجاباتك ونوريك أخطاءك.
الإجابة: B. HIV antibody western blot
After a positive screening immunoassay, HIV is confirmed with a confirmatory test. The first-choice confirmatory test is the HIV-1/HIV-2 differentiation immunoassay, which is not offered, so the Western blot (2nd choice) is the answer. CD4 count and viral load are used for staging and monitoring, not for confirming the diagnosis.
ليش كل خيار صح أو غلط
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A
ليش غلط
The CD4 count defines the stage (AIDS = an AIDS-defining condition or CD4 below 200); it does not confirm that someone is infected.
✓ all ID 🦠.pdf · p. 4 -
B
ليش صح
After a positive screening ELISA, the confirmatory tests are the HIV-1/HIV-2 differentiation immunoassay (first choice) and the Western blot (second choice). Western blot is the one offered.
✓ all ID 🦠.pdf · p. 5 -
D
ليش غلط
ELISA is itself a screening test (antibody-only, second choice). Repeating it only repeats the screen; the lecture's confirmatory tests are the differentiation immunoassay and Western blot.
✓ all ID 🦠.pdf · p. 5
- المصدر
- all ID 🦠.pdf · p. 5
Inefctious Diseases 🦠.pdf · p. 13 - المحاضرة
- HIV & Opportunistic Infections · Infectious Diseases · Module B
- ظهر في
- ID bank