A nurse is caring for a client who is coming to the clinic for human immunodeficiency virus (HIV) testing. The patient's enzyme-linked immunosorbent assay (ELISA) results are positive. Which test will be used to confirm the diagnosis of HIV?
Quantitative RNA assay
Western blot analysis
Viral load test
CD4+ T-cell count
The Correct Answer is B
A. A quantitative RNA assay is used to measure the amount of HIV RNA in the blood and is not used for confirmatory diagnosis after a positive ELISA.
B. The Western blot analysis is the standard confirmatory test for HIV following a positive ELISA result, as it specifically detects the presence of antibodies to HIV proteins.
C. A viral load test assesses the level of virus in the blood but does not confirm the diagnosis of HIV.
D. The CD4+ T-cell count is used to assess immune function in individuals with HIV but is not a confirmatory test for the diagnosis of the virus.
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Correct Answer is A
Explanation
A. Ensuring the blood is compatible with the client's blood type is critical in preventing an acute hemolytic reaction, as incompatible blood transfusions can cause serious, potentially life-threatening reactions.
B. Administering the transfusion rapidly can increase the risk of complications and does not prevent hemolytic reactions; transfusions should be given at a safe rate based on the client's condition.
C. Using a blood warmer is not a standard intervention to prevent hemolytic reactions; it's typically used in specific cases such as massive transfusions or hypothermia, but it does not address compatibility.
D. Administering prophylactic antihistamines is not a recommended practice to prevent hemolytic reactions; it is more relevant for preventing allergic reactions associated with transfusions.
Correct Answer is C
Explanation
A. Dietary iron restrictions may affect iron intake, but they are not a direct symptom of ulcerative colitis that contributes to anemia.
B. Intestinal parasites can cause anemia but are not a common complication associated with ulcerative colitis.
C. Chronic bloody diarrhea is a significant symptom of ulcerative colitis and leads to iron loss and depletion, contributing to the development of anemia due to the loss of blood and iron.
D. Intestinal malabsorption syndrome can lead to anemia; however, it is not a primary symptom of ulcerative colitis itself, making chronic bloody diarrhea the more direct contributing factor.