ATI LPN
Questions About the Immune System Questions
Question 1 of 5
What action by the nurse will help prevent a client from having a type II hypersensitivity reaction?
Correct Answer: B
Rationale: The correct answer is B because correctly identifying the client prior to a blood transfusion helps prevent a type II hypersensitivity reaction by ensuring compatibility between the donor and recipient blood types. This prevents the recipient's immune system from attacking the transfused blood, which can lead to a reaction. Administering steroids for a positive TB test (choice A) is unrelated to preventing type II hypersensitivity reactions. Keeping the client free of the offending agent (choice C) is more relevant to preventing type IV hypersensitivity reactions. Providing a latex-free environment for the client (choice D) is important for preventing latex allergies, a type I hypersensitivity reaction, not type II.
Question 2 of 5
One of the following is a primary lymphoid tissue:
Correct Answer: A
Rationale: The correct answer is A: Thymus. The thymus is considered a primary lymphoid tissue because it is where T cells mature and differentiate. It plays a crucial role in the development of the immune system. The other choices, B: Spleen, C: Lymph node, and D: Liver, are considered secondary lymphoid tissues where immune responses take place but not where lymphocytes mature.
Question 3 of 5
The nurse is conducting a teaching session with a client on their diagnosis of pemphigus. Which statement by the client indicates that the client understands the diagnosis?
Correct Answer: C
Rationale: The correct answer is C because it accurately states that pemphigus is an autoimmune disease that causes blistering of the skin. This demonstrates an understanding of the underlying cause of the condition. Option A is incorrect as pemphigus presents with blistering, not tiny red vesicles. Option B is incorrect as pemphigus is not caused by a virus. Option D is incorrect as the description provided does not match the characteristic presentation of pemphigus.
Question 4 of 5
The nurse is performing an assessment on a client who has been diagnosed with an allergy to latex. In determining the client's risk factors, the nurse should question the client about an allergy to which food item?
Correct Answer: D
Rationale: The correct answer is D: Bananas. Latex allergy is associated with cross-reactivity to certain fruits like bananas due to similar proteins. Therefore, questioning the client about a banana allergy is crucial to assess the risk of allergic reactions. Eggs (A), milk (B), and yogurt (C) are not typically associated with latex allergies, making them less relevant in this context.
Question 5 of 5
A 50-year-old woman with joint pain, morning stiffness, Hb 10.3 g/dL, MCV 80 fL, low serum iron, low iron-binding capacity. Most likely explanation for anemia?
Correct Answer: C
Rationale: Rationale: The correct answer is C, anemia of chronic disease. This type of anemia is characterized by low serum iron, low iron-binding capacity, and normocytic, normochromic red blood cells. In chronic inflammatory conditions like rheumatoid arthritis, the body’s response to inflammation leads to impaired iron metabolism and decreased erythropoiesis. This explains the low iron levels and anemia in this patient. Choices A, B, and D do not fit the clinical picture as occult blood loss, vitamin deficiency, and sideroblastic anemia would present with different laboratory findings and mechanisms of anemia.