The nurse is preparing a teaching plan for a group of well-educated clients who were found to be HIV positive within the last year. The nurse should explain that the human immunodeficiency virus (HIV) acts in which way to suppress the immune system?
Increase in B-lymphocytes and IgM.
Destruction of helper T-cells and CD4 cells.
Deficiency of cytotoxic T cells.
Proliferation of suppressor T-cells.
The Correct Answer is B
Choice A rationale
An increase in B-lymphocytes and IgM is not how HIV suppresses the immune system. B-lymphocytes are responsible for producing antibodies, and IgM is a type of antibody. HIV primarily affects T-lymphocytes, specifically helper T-cells (CD4 cells), rather than B-lymphocytes.
Choice B rationale
The destruction of helper T-cells and CD4 cells is the primary mechanism by which HIV suppresses the immune system. HIV targets and infects these cells, leading to their depletion. Helper T-cells play a crucial role in coordinating the immune response, and their loss results in a weakened immune system, making the body more susceptible to infections and diseases.
Choice C rationale
A deficiency of cytotoxic T cells is not the primary mechanism by which HIV suppresses the immune system. Cytotoxic T cells (CD8 cells) are involved in directly killing infected cells, but the main impact of HIV is on helper T-cells (CD4 cells), which are essential for orchestrating the immune response.
Choice D rationale
The proliferation of suppressor T-cells is not how HIV suppresses the immune system. Suppressor T-cells (regulatory T cells) help regulate and control the immune response, but HIV primarily affects helper T-cells (CD4 cells), leading to their destruction and a weakened immune system.
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Correct Answer is A
Explanation
Choice A rationale
Hematemesis, or vomiting blood, is a critical sign of bleeding esophageal varices, which can be life-threatening. Clients with chronic cirrhosis and esophageal varices are at high risk for variceal bleeding due to increased portal hypertension. Monitoring for hematemesis is essential to provide timely intervention and prevent complications.
Choice B rationale
Anorexia, or loss of appetite, is a common symptom in clients with chronic liver disease, but it is not the most critical problem to monitor in clients with esophageal varices. The primary concern is the risk of variceal bleeding.
Choice C rationale
Clay-colored stool indicates a lack of bile in the stool, which can occur in liver disease. However, it is not the most critical problem to monitor in clients with esophageal varices. The primary concern is the risk of variceal bleeding.
Choice D rationale
Brown, foamy urine can be a sign of liver dysfunction, but it is not the most critical problem to monitor in clients with esophageal varices. The primary concern is the risk of variceal bleeding.
Correct Answer is C
Explanation
Choice A rationale
Restricting fluids is not a primary limitation for clients with Crohn’s disease. Adequate hydration is important for overall health and managing symptoms.
Choice B rationale
Limiting foods high in calcium and iron is not typically recommended for Crohn’s disease. These nutrients are important for maintaining bone health and preventing anemia, which can be concerns for individuals with Crohn’s disease.
Choice C rationale
An elimination diet can help identify trigger foods that may exacerbate symptoms of Crohn’s disease. This approach involves removing certain foods from the diet and gradually reintroducing them to determine which foods cause symptoms.
Choice D rationale
Avoiding gluten is not necessary for all individuals with Crohn’s disease. While some may benefit from a gluten-free diet, it is not a universal recommendation for managing the condition.