A patient is being tested for HIV using the EIA (enzyme immunoassay). The EIA shows antibodies. The nurse expects the physician to order what test to confirm the EIA test results?
A) Another EIA test
B) Viral load test
C) Western blot test
D) CD4/CD8 ratio
Ans: C
Feedback: The Western blot test detects antibodies to HIV and is used to confirm EIA test results. The viral load test measures HIV RNA in the plasma and is not used to confirm EIA test results, but instead to track the progression of the disease process. The CD4/CD8 ratio test evaluates the ratio of CD4 and CD8 cells. HIV kills CD4 cells, which results in an impaired immune system, and this test is used to assess the immune system.
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