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 C
Explanation
Choice A rationale
Topical antifungals are used to treat fungal infections and are not effective for psoriasis, which is an autoimmune condition.
Choice B rationale
Colloidal oatmeal-based lotion can help soothe the skin but does not address the underlying inflammation and scaling associated with psoriasis.
Choice C rationale
Topical corticosteroids are the mainstay of treatment for psoriasis. They help reduce inflammation, itching, and redness associated with psoriatic plaques.
Choice D rationale
Topical analgesics can help relieve pain but do not address the underlying inflammation and scaling associated with psoriasis.
Correct Answer is B
Explanation
Choice A rationale
Obtaining vital signs every 2 hours is important for monitoring the patient’s overall condition, but it is not the immediate priority following the surgical removal of glass from the eye.
Choice B rationale
Providing an eye shield to be worn while sleeping is crucial to protect the eye from injury and promote healing after the surgical removal of glass. This intervention helps prevent accidental rubbing or pressure on the eye.
Choice C rationale
Teaching a family member to administer eye drops is important for ongoing care, but it is not the immediate priority following the procedure. The immediate focus should be on protecting the eye and ensuring proper healing.
Choice D rationale
Encouraging deep breathing and coughing exercises is important for preventing respiratory complications, but it is not directly related to the immediate care of the eye following the surgical removal of glass.