when the body produces antibodies against its own tissue the condition is called
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Nursing Elites

ATI RN

ATI Pathophysiology

1. When the body produces antibodies against its own tissue, the condition is called

Correct answer: C

Rationale: The correct answer is C, autoimmunity. Autoimmunity refers to the immune system attacking the body's own tissues. Alloimmunity (choice A) is the immune response to tissues of another individual of the same species. Opsonization (choice B) is the process where pathogens are marked for destruction by immune cells. Hypersensitivity (choice D) refers to excessive or inappropriate immune responses.

2. After a patient is exposed to a specific antigen, B cells will differentiate into:

Correct answer: B

Rationale: After exposure to a specific antigen, B cells undergo differentiation into plasma cells. Plasma cells are responsible for producing antibodies in response to the antigen. Choice A ('B cytotoxic cells') is incorrect because B cells do not differentiate into cytotoxic cells; cytotoxic cells are typically associated with T cells. Choice C ('Bursal cells') is incorrect as bursal cells are specific to birds and not relevant to human immune responses. Choice D ('Clonal equivalents') is incorrect as it does not describe the differentiation process of B cells exposed to antigens.

3. In which of the following patients may the administration of a live vaccine be contraindicated?

Correct answer: C

Rationale: The correct answer is C. The administration of live vaccines may be contraindicated in patients taking steroid therapy. Steroids can suppress the immune system, reducing the effectiveness of live vaccines. Patients with renal insufficiency or hepatic failure can typically receive live vaccines as these conditions are not direct contraindications. Age alone, such as being over 65 years old, is not a contraindication for live vaccines unless there are other specific health considerations. Therefore, the patient taking steroid therapy is the most likely candidate for whom the administration of a live vaccine would be contraindicated.

4. During patient teaching, a young woman asks the nurse the following question: 'If I get pregnant on the 'pill,' should I continue to take it?' What is the nurse's best response?

Correct answer: C

Rationale: The correct answer is 'C: This is a personal choice for each woman.' If a woman becomes pregnant while taking birth control pills, it is generally recommended to discontinue them as they can potentially harm the fetus. However, the decision to continue or discontinue the pill in case of pregnancy is ultimately a personal choice for each woman. Choice A is incorrect because birth control pills are meant to prevent pregnancy, but if a woman becomes pregnant while taking them, the situation changes. Choice B is incorrect because birth control pills do not cause miscarriage; they are intended to prevent pregnancy. Choice D is incorrect because while it is generally advised to discontinue the pill if pregnancy occurs, the decision ultimately depends on the individual circumstances and preferences of the woman.

5. A patient taking oral contraceptives reports breakthrough bleeding. What should the nurse assess in this patient?

Correct answer: A

Rationale: When a patient on oral contraceptives experiences breakthrough bleeding, the nurse should assess the patient's adherence to the medication schedule. Breakthrough bleeding can be a sign of missed doses or inconsistent timing, which can decrease the effectiveness of oral contraceptives. Assessing the patient's adherence helps in ensuring proper use of the medication. Choices B, C, and D are incorrect because breakthrough bleeding is more likely related to adherence issues rather than pregnancy, the need for increased dosage, or the effectiveness of the current oral contraceptive.

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