ATI RN
Pediatric Research Questions Questions
Question 1 of 5
Immunity to a disease after recovery is possible because the first exposure to the pathogen has stimulated the formation of which of the following?
Correct Answer: C
Rationale: Immunity to a disease after recovery is possible because the first exposure to the pathogen has stimulated the formation of memory cells. Memory cells are a type of immune cell that "remembers" the specific pathogen encountered during the initial infection. When the same pathogen tries to infect the individual again, these memory cells quickly recognize the pathogen and mount a faster and stronger immune response, leading to a quicker recovery and preventing the person from getting sick again from the same pathogen. This immune memory is the basis of acquired immunity, providing long-lasting protection against future infections by the same pathogen.
Question 2 of 5
Which of the following would the nurse evaluate as laboratory data that support the occurrence of AIDS?
Correct Answer: D
Rationale: The nurse would evaluate 200 CD 4+ cells as laboratory data that support the occurrence of AIDS. In patients with AIDS, there is a significant decrease in the CD4+ T-lymphocyte count, typically falling below 200 cells/mm³. This low CD4+ cell count increases the risk of opportunistic infections and indicates severe immune suppression, which is characteristic of AIDS. A CD4+ count of 200 or less is an important criterion for the diagnosis of AIDS according to the Centers for Disease Control and Prevention (CDC) and World Health Organization (WHO) guidelines.
Question 3 of 5
A client with autoimmune thrombocytopenia and a platelet count of 8,000/ul develops epistaxis and melena. Treatment with corticosteroids and immunoglobulins has been unsuccessful, and the physician recommends a splenectomy. The client states, "I don't need surgery-this will go away on its own". In considering her response to the client, the nurse must depend on the ethical principle of:
Correct Answer: C
Rationale: The ethical principle most relevant in this situation is autonomy. Autonomy refers to a person's right to make decisions about their own care and treatment. In this case, the client is expressing her wish to avoid surgery and believes her condition will improve on its own. It is important for the nurse to respect the client's autonomy and involve her in the decision-making process regarding her treatment. The nurse should provide information, support, and guidance to help the client make an informed decision that aligns with her values and preferences. While the nurse can provide education and encourage the client to consider the physician's recommendation, ultimately the decision should respect the client's autonomy.
Question 4 of 5
A client receiving ferrous sulfate (Fer-Iron) therapy to treat an iron deficiency reports taking an antacid frequently to relieve heart burn. Which nursing instruction should the nurse provide?
Correct Answer: B
Rationale: Antacids can interfere with the absorption of iron from ferrous sulfate. Therefore, it is important to take these medications at least 2 hours apart to ensure proper absorption of the iron supplement. Taking them together can reduce the effectiveness of the ferrous sulfate therapy in treating the iron deficiency. It is not necessary to avoid taking an antacid altogether, but timing is crucial to optimize the benefits of both medications.
Question 5 of 5
A client with human immunodeficiency virus (HIV) undergoes intradermal anergy testing using Candida and mumps antigen. During the 3 days following the tests, there is no induration or evidence of reaction at the intradermal injection sites. The most accurate conclusion the nurse can make is:
Correct Answer: C
Rationale: A client with HIV undergoing intradermal anergy testing with Candida and mumps antigens is suspected to be immunodeficient, making them unable to mount a normal skin response to these antigens. In an immunodeficient individual, the immune system is weakened, leading to a lack of response when exposed to these antigens. A lack of induration or reaction in the 3 days following the test suggests that the client's immune system is not able to mount a normal response, indicating immunodeficiency. The absence of a reaction does not necessarily indicate lack of exposure (Option A), presence of antibodies (Option B), or the absence of allergies (Option D), but rather points to a compromised immune system in an individual with HIV.